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Michigan State Senate elections, 2018

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2022
2014
2018 Michigan
Senate elections
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GeneralNovember 6, 2018
PrimaryAugust 7, 2018
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2018 elections
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Republicans maintained their majority in the 2018 elections for the Michigan State Senate despite losing their supermajority, winning 22 seats to Democrats' 16. All 38 Senate seats were up for election. At the time of the election, Republicans held 27 seats to Democrats' 10, with one vacancy.

Ballotpedia identified 15 of the races as battlegrounds, all of which were under Republican control. Of those seats, Republicans won 10 to Democrats' five.

Heading into the election, Michigan had been under a Republican trifecta since 2011 after Republicans flipped the governor's office and the state House in the 2010 elections. The state Senate was already controlled by Republicans prior to the 2010 elections.

State senators in Michigan serve four-year terms, so winning candidates in this election served through 2022. Prior to the election, legislators elected in 2018 would have played a role in the state's redistricting process after the 2020 census. They will not, however, as voters passed Michigan Proposal 2 in the same election, which transferred the power to draw the state's congressional and legislative districts from the state legislature to an independent redistricting commission.

The Michigan State Senate was one of 87 state legislative chambers with elections in 2018. There are 99 chambers throughout the country. The Michigan State Senate was one of 22 state legislative battleground chambers. Read more below.

Michigan state senators serve four-year terms, with all seats up for election every four years.

Democratic Party For more information about the Democratic primary, click here.
Republican Party For more information about the Republican primary, click here.

Post-election analysis

See also: State legislative elections, 2018

The Republican Party maintained control of both chambers of the Michigan State Legislature in the 2018 election, but the Michigan State Senate lost its Republican supermajority status after it no longer held the minimum 26 seats necessary. Both chambers of the Michigan State Legislature were identified as battleground chambers. In the state Senate, all 38 seats were up for election. The Republican Michigan State Senate majority was reduced from 27-10 to 22-16. One seat was vacant before the election. One Democratic incumbent was defeated in the primary and three Republican incumbents were defeated in the general election.

The Michigan House of Representatives held elections for all 110 seats. The Republican majority in the House of Representatives was reduced from 63-46 to 58-52. One Democratic incumbent and one Republican incumbent were defeated in the primary. One Republican incumbent was defeated in the general election.

National background

On November 6, 2018, 87 of the nation's 99 state legislative chambers held regularly scheduled elections for 6,073 of 7,383 total seats, meaning that nearly 82 percent of all state legislative seats were up for election.

  • Entering the 2018 election, Democrats held 42.6 percent, Republicans held 56.8 percent, and independents and other parties held 0.6 percent of the seats up for regular election.
  • Following the 2018 election, Democrats held 47.3 percent, Republicans held 52.3 percent, and independents and other parties held 0.4 percent of the seats up for regular election.
  • A total of 469 incumbents were defeated over the course of the election cycle, with roughly one-third of them defeated in the primary.

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Districts

See also: Michigan state legislative districts

Use the interactive map below to find your district.

Candidates

See also: Statistics on state legislative candidates, 2018

General election candidates

Michigan State Senate, November 6 general election candidates

  • Incumbents are marked with an (i) after their name.
  • Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.
Office Democratic Party Democratic Republican Party Republican Other
District 1

Green check mark transparent.pngStephanie Chang

Pauline Montie

David Bullock (Green Party)

District 2

Green check mark transparent.pngAdam Hollier

Lisa Papas  Candidate Connection

District 3

Green check mark transparent.pngSylvia Santana

Kathy Stecker

Hali McEachern (Working Class Party)

District 4

Green check mark transparent.pngMarshall Bullock

Angela Savino

District 5

Green check mark transparent.pngBetty Jean Alexander

DeShawn Wilkins

Larry Betts (Working Class Party)

District 6

Green check mark transparent.pngErika Geiss

Brenda Jones

District 7

Green check mark transparent.pngDayna Polehanki  Candidate Connection

Laura Cox

Joseph LeBlanc (Libertarian Party)  Candidate Connection

District 8

Paul Francis

Green check mark transparent.pngPeter Lucido

District 9

Green check mark transparent.pngPaul Wojno

Jeff Bonnell

District 10

Henry Yanez

Green check mark transparent.pngMichael MacDonald

Mike Saliba (Libertarian Party)

District 11

Green check mark transparent.pngJeremy Moss

Boris Tuman

James Young (Libertarian Party)

District 12

Green check mark transparent.pngRosemary Bayer

Michael McCready

Jeff Pittel (Libertarian Party)

District 13

Green check mark transparent.pngMallory McMorrow

Marty Knollenberg (i)

District 14

Renee Watson

Green check mark transparent.pngRuth Johnson

Jessicia Smith (Green Party)  Candidate Connection

District 15

Julia Pulver

Green check mark transparent.pngJim Runestad

District 16

Val Cochran Toops

Green check mark transparent.pngMike Shirkey (i)

Ronald Muszynski (Libertarian Party)

District 17

Bill LaVoy  Candidate Connection

Green check mark transparent.pngDale Zorn (i)

Chad McNamara (Libertarian Party)

District 18

Green check mark transparent.pngJeff Irwin

Martin Church  Candidate Connection

Thomas Repasky (Working Class Party)

District 19

Jason Noble  Candidate Connection

Green check mark transparent.pngJohn Bizon

Joseph Gillotte (Libertarian Party)

District 20

Green check mark transparent.pngSean McCann  Candidate Connection

Margaret O'Brien (i)

Lorence Wenke (Libertarian Party)

District 21

Ian Haight

Green check mark transparent.pngKim LaSata

District 22

Adam Dreher  Candidate Connection

Green check mark transparent.pngLana Theis

Eric Borregard (Green Party)  Candidate Connection

District 23

Green check mark transparent.pngCurtis Hertel (i)

Andrea Pollock

District 24

Kelly Rossman-McKinney

Green check mark transparent.pngTom Barrett

Katie Nepton (Libertarian Party)
Matthew Shepard (U.S. Taxpayers Party)

District 25

Debbie Bourgois

Green check mark transparent.pngDan Lauwers

District 26

Garnet Lewis  Candidate Connection

Green check mark transparent.pngAric Nesbitt

Robert Alway (Green Party)
Erwin Haas (Libertarian Party)

District 27

Green check mark transparent.pngJim Ananich (i)

Donna Kekesis

District 28

Craig Beach

Green check mark transparent.pngPeter MacGregor (i)

Nathan Hewer (Libertarian Party)

District 29

Green check mark transparent.pngWinnie Brinks

Chris Afendoulis

Robert VanNoller (Libertarian Party)
Louis Palus (Working Class Party)

District 30

Jeanette Schipper

Green check mark transparent.pngRoger Victory

Mary Buzuma (Libertarian Party)

District 31

Cynthia Luczak

Green check mark transparent.pngKevin Daley

District 32

Phil Phelps

Green check mark transparent.pngKen Horn (i)

District 33

Mark Bignell  Candidate Connection

Green check mark transparent.pngRick Outman

Christopher Comden (U.S. Taxpayers Party)

District 34

Poppy Sias-Hernandez

Green check mark transparent.pngJon Bumstead

Max Riekse (Libertarian Party)

District 35

Mike Taillard

Green check mark transparent.pngCurt VanderWall

Timothy Coon (Libertarian Party)

District 36

Joe Weir

Green check mark transparent.pngJim Stamas (i)

District 37

Jim Page  Candidate Connection

Green check mark transparent.pngWayne Schmidt (i)

District 38

Scott Dianda

Green check mark transparent.pngEd McBroom

Wade Paul Roberts (Green Party)


Write-in candidates

Primary candidates

Michigan State Senate Primary Elections 2018

  • Incumbents are marked with an (i) after their name.
  • Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.
Office Democratic Party Democratic Republican Party Republican Other
District 1

Green check mark transparent.pngStephanie Chang
James Cole Jr.
Nicholas Rivera
Stephanie Roehm
Bettie Cook Scott
Alberta Tinsley-Talabi

Green check mark transparent.pngPauline Montie

District 2

Abraham Aiyash
Brian Banks
Tommy Campbell
George Cushingberry Jr.
Lawrence Gannan
Green check mark transparent.pngAdam Hollier
LaMar Lemmons
Anam Miah
John Olumba
William Phillips
Regina Williams

John Hauler
Green check mark transparent.pngLisa Papas  Candidate Connection

District 3

Anita Belle
Terry Burrell
Green check mark transparent.pngSylvia Santana
Gary Woronchak

Green check mark transparent.pngKathy Stecker

District 4

Green check mark transparent.pngMarshall Bullock
Fred Durhal III
Carron Pinkins

Green check mark transparent.pngAngela Savino

District 5

David Knezek (i)
Green check mark transparent.pngBetty Jean Alexander

Green check mark transparent.pngDeShawn Wilkins

District 6

Green check mark transparent.pngErika Geiss
Robert Kosowski

Green check mark transparent.pngBrenda Jones

District 7

Green check mark transparent.pngDayna Polehanki  Candidate Connection
Ghulam Qadir

Green check mark transparent.pngLaura Cox

Libertarian Party

Green check mark transparent.pngJoseph LeBlanc  Candidate Connection
District 8

Patrick Biange
Raymond Filipek
Green check mark transparent.pngPaul Francis

Ken Goike
Green check mark transparent.pngPeter Lucido

District 9

Kristina Lodovisi
Green check mark transparent.pngPaul Wojno

Green check mark transparent.pngJeff Bonnell
Fred Kuplicki

District 10

Green check mark transparent.pngHenry Yanez

Joseph Bogdan
Green check mark transparent.pngMichael MacDonald
Michael Shallal

Libertarian Party

Green check mark transparent.pngMike Saliba
District 11

Crystal Bailey
Green check mark transparent.pngJeremy Moss
Vanessa Moss
James Turner

Green check mark transparent.pngBoris Tuman

Libertarian Party

Green check mark transparent.pngJames Young
District 12

Green check mark transparent.pngRosemary Bayer

Green check mark transparent.pngMichael McCready
Vernon Molnar
Jim Tedder
Terry Whitney

Libertarian Party

Green check mark transparent.pngJeff Pittel
District 13

Green check mark transparent.pngMallory McMorrow

Green check mark transparent.pngMarty Knollenberg (i)

District 14

Cris Rariden
Jason Waisanen
Green check mark transparent.pngRenee Watson

Katherine Houston
Green check mark transparent.pngRuth Johnson

District 15

Green check mark transparent.pngJulia Pulver

Green check mark transparent.pngJim Runestad
Michael Saari

District 16

Green check mark transparent.pngVal Cochran Toops

Green check mark transparent.pngMike Shirkey (i)
Matt Dame

Libertarian Party

Green check mark transparent.pngRonald Muszynski
District 17

Green check mark transparent.pngBill LaVoy  Candidate Connection

Green check mark transparent.pngDale Zorn (i)

Libertarian Party

Green check mark transparent.pngChad McNamara
District 18

Michelle Deatrick
Green check mark transparent.pngJeff Irwin
Matthew Miller
Anuja Rajendra

Green check mark transparent.pngMartin Church  Candidate Connection

District 19

Green check mark transparent.pngJason Noble  Candidate Connection

Green check mark transparent.pngJohn Bizon
Mike Callton

Libertarian Party

Green check mark transparent.pngJoseph Gillotte
District 20

Green check mark transparent.pngSean McCann  Candidate Connection

Green check mark transparent.pngMargaret O'Brien (i)

Libertarian Party

Green check mark transparent.pngLorence Wenke
District 21

Green check mark transparent.pngIan Haight

Green check mark transparent.pngKim LaSata
Dave Pagel

District 22

Green check mark transparent.pngAdam Dreher  Candidate Connection

Joseph Converse Marinaro
Green check mark transparent.pngLana Theis

District 23

Green check mark transparent.pngCurtis Hertel (i)

Nancy Denny
Green check mark transparent.pngAndrea Pollock

District 24

Green check mark transparent.pngKelly Rossman-McKinney

Green check mark transparent.pngTom Barrett
Brett Roberts

Libertarian Party

Green check mark transparent.pngKatie Nepton
District 25

Green check mark transparent.pngDebbie Bourgois

Green check mark transparent.pngDan Lauwers

District 26

Green check mark transparent.pngGarnet Lewis  Candidate Connection

Bob Genetski
Green check mark transparent.pngAric Nesbitt
Don Wickstra

Libertarian Party

Green check mark transparent.pngErwin Haas
District 27

Green check mark transparent.pngJim Ananich (i)

Green check mark transparent.pngDonna Kekesis

District 28

Green check mark transparent.pngCraig Beach
Gidget Groendyk
Ryan Jeanette

Green check mark transparent.pngPeter MacGregor (i)

Libertarian Party

Green check mark transparent.pngNathan Hewer
District 29

Green check mark transparent.pngWinnie Brinks

Green check mark transparent.pngChris Afendoulis
Daniel Oesch

Libertarian Party

Green check mark transparent.pngRobert VanNoller
District 30

Green check mark transparent.pngJeanette Schipper

Rett DeBoer
Daniela Garcia
Joe Haveman
Green check mark transparent.pngRoger Victory

Libertarian Party

Green check mark transparent.pngMary Buzuma
District 31

Joni Batterbee
Bill Jordan
Green check mark transparent.pngCynthia Luczak
Charles Stadler

Green check mark transparent.pngKevin Daley
Gary Glenn

District 32

Henry Gaudreau
Green check mark transparent.pngPhil Phelps

Green check mark transparent.pngKen Horn (i)

District 33

Green check mark transparent.pngMark Bignell  Candidate Connection
John Hoppough

Gregory Alexander
Green check mark transparent.pngRick Outman

District 34

Collene Lamonte
Green check mark transparent.pngPoppy Sias-Hernandez

Green check mark transparent.pngJon Bumstead
Holly Hughes

Libertarian Party

Green check mark transparent.pngMax Riekse
District 35

Green check mark transparent.pngMike Taillard

Ray Franz
Bruce Rendon
Cary Urka
Green check mark transparent.pngCurt VanderWall

Libertarian Party

Green check mark transparent.pngTimothy Coon
District 36

Green check mark transparent.pngJoe Weir

Green check mark transparent.pngJim Stamas (i)

District 37

Green check mark transparent.pngJim Page  Candidate Connection

Green check mark transparent.pngWayne Schmidt (i)
Jim Gurr

District 38

Green check mark transparent.pngScott Dianda

Mike Carey
Green check mark transparent.pngEd McBroom

Margins of victory

See also: Margin of victory analysis for the 2018 state legislative elections

A margin of victory (MOV) analysis for the 2018 Michigan State Senate races is presented in this section. MOV represents the percentage of total votes that separated the winner and the second-place finisher. For example, if the winner of a race received 47 percent of the vote and the second-place finisher received 45 percent of the vote, the MOV is 2 percent.

The table below presents the following figures for each party:

  • Elections won
  • Elections won by less than 10 percentage points
  • Elections won without opposition
  • Average margin of victory[1]
Michigan State Senate: 2018 Margin of Victory Analysis
Party Elections won Elections won by less than 10% Unopposed elections Average margin of victory[1]
Democratic Party Democratic
16
3
0
35.1%
Republican Party Republican
22
3
0
17.7%
Grey.png Other
0
0
0
N/A
Total
38
6
0
26.4%



The margin of victory in each race is presented below. The list is sorted from the closest MOV to the largest (including unopposed races).

Michigan State Senate: 2018 Margin of Victory by District
District Winning Party Losing Party Margin of Victory
Michigan State Senate District 12
Electiondot.png Democratic
Ends.png Republican
0.8%
Michigan State Senate District 7
Electiondot.png Democratic
Ends.png Republican
3.2%
Michigan State Senate District 15
Ends.png Republican
Electiondot.png Democratic
3.4%
Michigan State Senate District 13
Electiondot.png Democratic
Ends.png Republican
3.8%
Michigan State Senate District 34
Ends.png Republican
Electiondot.png Democratic
4.4%
Michigan State Senate District 10
Ends.png Republican
Electiondot.png Democratic
4.5%
Michigan State Senate District 24
Ends.png Republican
Electiondot.png Democratic
10.1%
Michigan State Senate District 20
Electiondot.png Democratic
Ends.png Republican
10.8%
Michigan State Senate District 32
Ends.png Republican
Electiondot.png Democratic
11.0%
Michigan State Senate District 38
Ends.png Republican
Electiondot.png Democratic
11.1%
Michigan State Senate District 14
Ends.png Republican
Electiondot.png Democratic
13.6%
Michigan State Senate District 22
Ends.png Republican
Electiondot.png Democratic
13.9%
Michigan State Senate District 21
Ends.png Republican
Electiondot.png Democratic
16.3%
Michigan State Senate District 29
Electiondot.png Democratic
Ends.png Republican
16.5%
Michigan State Senate District 26
Ends.png Republican
Electiondot.png Democratic
16.6%
Michigan State Senate District 37
Ends.png Republican
Electiondot.png Democratic
17.9%
Michigan State Senate District 17
Ends.png Republican
Electiondot.png Democratic
18.6%
Michigan State Senate District 28
Ends.png Republican
Electiondot.png Democratic
19.4%
Michigan State Senate District 19
Ends.png Republican
Electiondot.png Democratic
20.2%
Michigan State Senate District 31
Ends.png Republican
Electiondot.png Democratic
20.5%
Michigan State Senate District 33
Ends.png Republican
Electiondot.png Democratic
20.6%
Michigan State Senate District 6
Electiondot.png Democratic
Ends.png Republican
22.7%
Michigan State Senate District 8
Ends.png Republican
Electiondot.png Democratic
23.5%
Michigan State Senate District 25
Ends.png Republican
Electiondot.png Democratic
27.9%
Michigan State Senate District 16
Ends.png Republican
Electiondot.png Democratic
28.4%
Michigan State Senate District 36
Ends.png Republican
Electiondot.png Democratic
28.6%
Michigan State Senate District 35
Ends.png Republican
Electiondot.png Democratic
28.9%
Michigan State Senate District 30
Ends.png Republican
Electiondot.png Democratic
29.0%
Michigan State Senate District 9
Electiondot.png Democratic
Ends.png Republican
31.8%
Michigan State Senate District 23
Electiondot.png Democratic
Ends.png Republican
36.9%
Michigan State Senate District 27
Electiondot.png Democratic
Ends.png Republican
42.3%
Michigan State Senate District 1
Electiondot.png Democratic
Ends.png Republican
47.8%
Michigan State Senate District 2
Electiondot.png Democratic
Ends.png Republican
51.4%
Michigan State Senate District 18
Electiondot.png Democratic
Ends.png Republican
55.6%
Michigan State Senate District 11
Electiondot.png Democratic
Ends.png Republican
55.9%
Michigan State Senate District 4
Electiondot.png Democratic
Ends.png Republican
56.6%
Michigan State Senate District 5
Electiondot.png Democratic
Ends.png Republican
59.2%
Michigan State Senate District 3
Electiondot.png Democratic
Ends.png Republican
66.5%


Seats flipped

See also: State legislative seats that changed party control, 2018

The below map displays each seat in the Michigan State Senate which changed partisan hands as a result of the 2018 elections, shaded according to the partisan affiliation of the winner in 2018. Hover over a shaded district for more information.

State legislative seats flipped in 2018, Michigan State Senate
District Incumbent 2018 winner Direction of flip
Michigan State Senate District 12 Republican Party James Marleau Democratic Party Rosemary Bayer R to D
Michigan State Senate District 13 Republican Party Marty Knollenberg Democratic Party Mallory McMorrow R to D
Michigan State Senate District 20 Republican Party Margaret O'Brien Democratic Party Sean McCann R to D
Michigan State Senate District 29 Republican Party Dave Hildenbrand Democratic Party Winnie Brinks R to D
Michigan State Senate District 7 Republican Party Patrick Colbeck Democratic Party Dayna Polehanki R to D

Incumbents retiring

Twenty-seven incumbents did not run for re-election in 2018.[2] Those incumbents were:

Name Party Current Office
Coleman Young II Electiondot.png Democratic Senate District 1
Bert Johnson Electiondot.png Democratic Senate District 2
Morris Hood Electiondot.png Democratic Senate District 3
Ian Conyers Electiondot.png Democratic Senate District 4
Hoon-Yung Hopgood Electiondot.png Democratic Senate District 6
Patrick Colbeck Ends.png Republican Senate District 7
Jack Brandenburg Ends.png Republican Senate District 8
Steven Bieda Electiondot.png Democratic Senate District 9
Tory Rocca Ends.png Republican Senate District 10
Vincent Gregory Electiondot.png Democratic Senate District 11
Jim Marleau Ends.png Republican Senate District 12
David Robertson Ends.png Republican Senate District 14
Mike Kowall Ends.png Republican Senate District 15
Rebekah Warren Electiondot.png Democratic Senate District 18
Mike Nofs Ends.png Republican Senate District 19
John Proos Ends.png Republican Senate District 21
Joe Hune Ends.png Republican Senate District 22
Rick Jones Ends.png Republican Senate District 24
Phil Pavlov Ends.png Republican Senate District 25
Tonya Schuitmaker Ends.png Republican Senate District 26
Dave Hildenbrand Ends.png Republican Senate District 29
Arlan Meekhof Ends.png Republican Senate District 30
Mike Green Ends.png Republican Senate District 31
Judy Emmons Ends.png Republican Senate District 33
Goeff Hansen Ends.png Republican Senate District 34
Darwin Booher Ends.png Republican Senate District 35
Tom Casperson Ends.png Republican Senate District 38

2018 battleground chamber

See also: State legislative battleground chambers, 2018

Ballotpedia identified the Michigan State Senate as one of 22 battleground chambers in 2018. These were chambers that we anticipated to be, overall, more competitive than other chambers and had the potential to see significant shifts in party control.

The chamber was selected because it met the following conditions:

  • Term-limited members: Twenty-six of the chamber's 38 members faced term limits, seven Democrats and 19 Republicans. Based on presidential election results from 2012 and 2016, 11 seats held by term-limited Republicans were vulnerable. See the battleground races here.

Battleground races

Ballotpedia identified 15 battleground races in the Michigan State Senate 2018 elections, all in Republican-held seats. Based on analysis of these districts' electoral histories, these races had the potential to be more competitive than other races and could possibly have led to shifts in a chamber's partisan balance.

To determine state legislative battleground races in 2018, Ballotpedia looked for races that fit one or more of the four factors listed below:

  1. If the incumbent won less than 55 percent of the vote in the most recent election prior to 2018
  2. If the presidential candidate opposite of the incumbent's party won the district in the 2016 elections and the incumbent’s margin of victory in the previous election was 10 percentage points or less
  3. If the presidential candidate opposite of the incumbent's party won the district in the 2016 elections and the incumbent did not file to run for re-election
  4. If the presidential candidate opposite of the incumbent's party won the district in the 2016 elections by 20 points or more

Other factors could also cause a race to be classified as a battleground. For example, Ballotpedia may have considered an election to be a battleground race if an outside group or a national or state party announced that they were targeting a specific seat in order to flip it. We may have also determined a race to be a battleground if it received an unusual amount of media attention. Two additional factors were open seats and districts impacted by redistricting.

Because of the unusually high number of open seats, we list all Michigan Senate races where the 2016 presidential margin of victory was less than 10 percentage points and seats where the 2012 presidential margin of victory was less than 5 percentage points.

In the table below, a bolded name indicates the winner of an election.

2018 Michigan Senate Races to Watch
District Democratic Party Democrat Republican Party Republican 2016 presidential result 2012 presidential result Incumbent running?
District 7 Dayna Polehanki Laura Cox D+0.1 D+1.8 No
District 10 Henry Yanez Michael MacDonald R+16.1 R+2.1 No
District 12 Rosemary Bayer Michael McCready R+0.5 R+0.5 No
District 13 Mallory McMorrow Marty Knollenberg (i) D+6.0 R+0.8 Yes
District 14 Renee Watson Ruth Johnson R+16.8 R+3.8 No
District 15 Julia Pulver Jim Runestad R+4.1 R+5.8 No
District 17 Bill LaVoy Dale Zorn (i) R+21.7 D+0.1 Yes
District 20 Sean McCann Margaret O'Brien (i) D+12.8 D+13.3 Yes
District 24 Kelly Rossman-McKinney Tom Barrett R+11.0 R+0.2 No
District 29 Winnie Brinks Chris Afendoulis D+15.1 D+6.4 No
District 31 Cynthia Luczak Kevin Daley R+27.2 R+3.9 No
District 32 Phil Phelps Ken Horn (i) R+6.2 D+8.1 Yes
District 33 Mark Bignell Rick Outman R+23.2 R+3.0 No
District 34 Poppy Sias-Hernandez Jon Bumstead R+9.8 D+7.9 No
District 38 Scott Dianda Ed McBroom R+17.0 R+1.9 No


Battleground races map

Michigan political history

See also: Partisan composition of state senates and State government trifectas

Party control

2018

In the 2018 elections, the Republican majority in the Michigan State Senate was reduced from 27-10 to 22-16.

Michigan State Senate
Party As of November 6, 2018 After November 7, 2018
     Democratic Party 10 16
     Republican Party 27 22
     Vacancy 1 0
Total 38 38

2014

In the 2014 elections, Republicans maintained their majority in the Michigan State Senate.

Michigan State Senate
Party As of November 3, 2014 After November 4, 2014
     Democratic Party 12 11
     Republican Party 26 27
Total 38 38

Trifectas

A state government trifecta is a term that describes single-party government, when one political party holds the governor's office and has majorities in both chambers of the legislature in a state government. Republicans in Michigan held a state government trifecta for 13 years between 1992 and 2017.

Michigan Party Control: 1992-2025
Two years of Democratic trifectas  •  Fourteen years of Republican trifectas
Scroll left and right on the table below to view more years.

Year 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
Governor R R R R R R R R R R R D D D D D D D D R R R R R R R R D D D D D D D
Senate R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R D D D
House D S S R R D D R R R R R R R R D D D D R R R R R R R R R R R R D D R

Impact of term limits

See also: Impact of term limits on state senate elections in 2018 and Impact of term limits on state legislative elections in 2018

The Michigan State Senate has been a term-limited state Senate since Michigan voters approved the Michigan Term Limits Act in 1992. That initiative said that Michigan senators are subject to term limits of no more than two four-year terms, or a total of eight years. The first year that the term limits enacted in 1992 impacted the ability of incumbents to run for office was in 2002.

All 38 seats in the Michigan State Senate were up for election in 2018. In the 2018 elections, 26 senators were ineligible to run because of term limits. The following state senators were term-limited in 2018:

Democratic: (7)

Republicans (19):

Of the 87 state legislative chambers that held elections in 2018, 24 of them—12 senate chambers and 12 house chambers—included incumbents who were unable to run for re-election due to term limits.[4] In the 24 chambers affected by term limits in 2018, 1,463 seats were up for election.[5] The Nevada Senate, Arkansas House, and Arkansas Senate are impacted by term limits, but no incumbents were term-limited in 2018. There are 99 chambers throughout the country.

A total of 271 state legislators—96 state senators and 175 state representatives—were ineligible to run in the 2018 elections because of term limits. This represented 4 percent of the 6,066 total seats up for election in November 2018.[6][7] Republicans had twice as many state legislators term-limited in 2018 than Democrats. A total of 86 Democrats were term-limited, while 177 Republicans were term-limited.

Political context of the 2018 elections

2017 tax incentive legislation

In 2017, the Republican-controlled Michigan Legislature passed a Good Jobs legislation package that offered a variety of tax-based incentives to businesses that relocated or expanded operations in Michigan. The incentives varied based on the number of jobs a company brought to the state and the wages it paid its employees.[8] The legislation drew support from Democratic and Republican lawmakers and opposition from House Republican leadership and conservative groups around the state.[9]

  • On July 12, 2017, the Michigan House passed the bills 71-35, with 40 Republicans and 31 Democrats voting in favor of the bills. As of July 2017, Republicans had a 63-45 majority in the chamber. The Senate passed the bills in March 32-5, with five Republican senators voting against them.[10] As of July 2017, Republicans had a 27-11 majority in the Senate. Gov. Rick Snyder (R) voiced support for the legislation, saying, "We are now enacting forward-thinking policies that make us more competitive for new jobs and industries in a fiscally responsible fashion."[11] The bills were sent to Gov. Snyder on July 14, 2017. He signed the legislation on July 26, 2017.[12]
  • Supporters of the bills—including some Democrats and some Republicans in both chambers and business groups in the state—said that the bills would be key to bringing businesses to Michigan and creating new jobs. Opponents—such as House Speaker Tom Leonard (R) and conservative groups like Americans for Prosperity Michigan and the Michigan Freedom Fund—argued that the legislation would allow the government to pick winners and losers and amount to, what a spokesperson from Americans for Prosperity Michigan called, sweetheart tax deals.[13]


Redistricting in Michigan

See also: Redistricting in Michigan

Because state senators in Michigan serve four-year terms, winning candidates in the 2018 election served through 2022 and played a role in Michigan's redistricting process—the drawing of boundary lines for congressional and state legislative districts. Prior to 2020-2022, redistricting last took place in Michigan from 2010 to 2012.

State process

In Michigan, a non-politician commission is responsible for drawing both congressional and state legislative district plans. The commission comprises 13 members, including four Democrats, four Republicans, and five unaffiliated voters or members of minor parties. In order for a map to be enacted, at least seven members must vote for it, including at least two Democrats, two Republicans, and two members not affiliated with either major party.[14]

The Michigan Independent Citizens Redistricting Commission prepared this document specifically explaining the redistricting process after the 2020 census.

Wave election analysis

See also: Wave elections (1918-2016)

The term wave election is frequently used to describe an election cycle in which one party makes significant electoral gains. How many seats would Republicans have had to lose for the 2018 midterm election to be considered a wave election?

Ballotpedia examined the results of the 50 election cycles that occurred between 1918 and 2016—spanning from President Woodrow Wilson's (D) second midterm in 1918 to Donald Trump's (R) first presidential election in 2016. We define wave elections as the 20 percent of elections in that period resulting in the greatest seat swings against the president's party.

Applying this definition to state legislative elections, we found that Republicans needed to lose 494 seats for 2018 to qualify as a wave election.

The chart below shows the number of seats the president's party lost in the 10 state legislative waves from 1918 to 2016. Click here to read the full report.

State legislative wave elections
Year President Party Election type State legislative seats change Elections analyzed[15]
1932 Hoover R Presidential -1,022 7,365
1922 Harding R First midterm -907 6,907
1966 Johnson D First midterm[16] -782 7,561
1938 Roosevelt D Second midterm -769 7,179
1958 Eisenhower R Second midterm -702 7,627
2010 Obama D First midterm -702 7,306
1974 Ford R Second midterm[17] -695 7,481
1920 Wilson D Presidential -654 6,835
1930 Hoover R Presidential -640 7,361
1954 Eisenhower R First midterm -494 7,513

Candidate and office information

Process to become a candidate

See also: Ballot access requirements for political candidates in Michigan

For major party candidates

DocumentIcon.jpg See statutes: Michigan Election Law, "Preparation and Filing of Nominating Petitions; Fees"

Political parties whose principal candidate received at least 5 percent of the total votes cast for all candidates for Michigan Secretary of State at the most recent general election are considered major parties and must generally nominate their candidates by primary election.[18]

A major party candidate for governor, the United States Senate, the United States House of Representatives, or the state legislature must file an affidavit of identity and nominating petition by 4:00 p.m. on the 15th Tuesday preceding the primary election. Candidates for secretary of state and attorney general are not nominated by primary, but by convention.Cite error: Closing </ref> missing for <ref> tag[19][20]

The affidavit of identity requires the candidate to provide basic identifying information (such as name, residential and mailing address, the office being sought, etc.). The affidavit also includes a campaign finance compliance statement, which the candidate must sign before a notary public.[19]

Nominating petition signature requirements vary according to the population of the electoral division (e.g., entire state, congressional district, state legislative district, etc.) and are summarized in the table below.[21]

Statutory signature requirements for major party candidates
Population of electoral division Minimum signatures Maximum signatures
0 - 9,999 3 10
10,000 - 24,999 20 50
25,000 - 49,999 50 100
50,000 - 74,999 100 200
75,000 - 99,999 200 400
100,000 - 199,999 300 500
200,000 - 499,999 500 1,000
500,000 - 999,999 1,000 2,000
1,000,000 - 1,999,999 2,000 4,000
2,000,000 - 4,999,999 4,000 8,000
Over 5 million (statewide) 15,000 30,000


A major party state legislative candidate may pay a filing fee of $100 in lieu of filing a nominating petition.[22]

Filing paperwork for federal, statewide, and multi-county state legislative district offices must be submitted to the Michigan Secretary of State. Filing paperwork for single-county state legislative district offices must be submitted to the appropriate county clerk.[20]

For minor party candidates

DocumentIcon.jpg See statutes: Michigan Election Law, Section 168.686a

Political parties whose principal candidate received less than 5 percent of the total votes cast for all candidates for Michigan Secretary of State at the most recent general election are considered non-major parties and cannot nominate their candidates by primary election. Instead, such parties must nominate their candidates by county caucuses and state conventions. Candidates for the United States House of Representatives or the state legislature may be nominated by county caucuses, provided that the applicable electoral district lies entirely within the boundaries of a single county. Candidates for statewide office must be nominated by state conventions. District candidates (e.g., state legislative or congressional candidates whose districts encompass parts of more than one county) may be nominated at district caucuses held in conjunction with state conventions, provided that delegates from the district are in attendance.[18][23]

No more than one day following the conclusion of a caucus or convention, the chairperson and secretary of the caucus or convention must certify the names and mailing addresses of the selected candidates to the county clerk (if nominated by county caucus) or Michigan Secretary of State (if nominated by state convention). This certification must be accompanied by an affidavit of identity (the same as that filed by major party candidates) and a signed certificate of acceptance of the nomination for each candidate.[23]

Caucuses and conventions must be held by the date of the state primary election.[23]

For independent candidates

DocumentIcon.jpg See statutes: Michigan Election Law, "Candidates Without Political Party Affiliation"

An independent candidate seeking placement on the general election ballot must file an affidavit of identity (the same as that filed by party candidates) and a qualifying petition. All filing materials must be submitted by 4:00 p.m. on the 110th day preceding the general election.[24]

Qualifying petition signature requirements vary according to the population of the electoral division (e.g., entire state, congressional district, state legislative district, etc.) and are summarized in the table below.[21]

Statutory signature requirements for independent candidates
Population of electoral division Minimum signatures Maximum signatures
0 - 9,999 9 30
10,000 - 24,999 60 150
25,000 - 49,999 150 300
50,000 - 74,999 300 600
75,000 - 99,999 600 1,200
100,000 - 199,999 900 1,500
200,000 - 499,999 1,500 3,000
500,000 - 999,999 3,000 6,000
1,000,000 - 1,999,999 6,000 12,000
2,000,000 - 4,999,999 12,000 24,000
Over 5 million (statewide) 30,000 60,000


Signatures on qualifying petitions must be collected in the 180 days prior to the date the petition is filed. Any signatures collected prior to that will not be counted.[21]

Filing paperwork for federal, statewide, and multi-county state legislative district offices must be submitted to the Michigan Secretary of State. Filing paperwork for single-county state legislative district offices must be submitted to the appropriate county clerk.[20]

For write-in candidates

In order to have his or her votes tallied, a write-in candidate must submit a declaration of intent to be a write-in candidate to the appropriate filing official by 4:00 p.m. on the second Friday immediately preceding an election.[25]

Filing paperwork for federal, statewide, and multi-county state legislative district offices must be submitted to the Michigan Secretary of State. Filing paperwork for single-county state legislative district offices must be submitted to the appropriate county clerk.[20]

Candidate name conventions

Michigan law establishes the following conventions to govern how a candidate's name can be rendered on an election ballot:[26]

If you are using a name that was not provided to you at birth, you must check the box and provide your former name. However, you do not need to provide a former name if your name changed because of marriage or divorce, is a nickname that you have been known as for at least 6 months, or was formally changed for any reason more than 10 years ago.[26][27]

Vacancies

Upon the death, resignation, or removal of a member of the U.S. House of Representatives, the governor must issue a call for a special election to fill the vacancy. A special primary must be held at least 20 days prior to the date of the special election. The proclamation must establish all election dates and candidate filing deadlines.[28]

Qualifications

See also: State legislature candidate requirements by state

Section 7 of Article 4 of the Michigan Constitution states, "Each senator and representative must be a citizen of the United States, at least 21 years of age, and an elector of the district he represents. The removal of his domicile from the district shall be deemed a vacation of the office. No person who has been convicted of subversion or who has within the preceding 20 years been convicted of a felony involving a breach of public trust shall be eligible for either house of the legislature."

Salaries and per diem

See also: Comparison of state legislative salaries
State legislative salaries, 2024[29]
SalaryPer diem
$71,685/yearNo per diem is paid. Legislators receive an expense allowance of $10,800/year for session and interim.

When sworn in

See also: When state legislators assume office after a general election

Michigan legislators assume office at noon on the first day of January.[30]

Competitiveness

Every year, Ballotpedia uses official candidate lists from each state to examine the competitiveness of every state legislative race in the country. Nationally, there has been a steady decline in electoral competitiveness since 2010. Most notable is that the number of districts with general election competition has dropped by more than 10 percent.

Results from 2016

Click here to read the full study »


Historical context

See also: Competitiveness in State Legislative Elections: 1972-2014

Uncontested elections: In 2014, 32.8 percent of Americans lived in states with an uncontested state senate election. Similarly, 40.4 percent of Americans lived in states with uncontested house elections. Primary elections were uncontested even more frequently, with 61 percent of people living in states with no contested primaries. Uncontested elections often occur in locations that are so politically one-sided that the result of an election would be a foregone conclusion regardless of whether it was contested or not.

F5 Pop. % with uncontested state legislative races.png

Open seats: In most cases, an incumbent will run for re-election, which decreases the number of open seats available. In 2014, 83 percent of the 6,057 seats up for election saw the incumbent running for re-election. The states that impose term limits on their legislatures typically see a higher percentage of open seats in a given year because a portion of incumbents in each election are forced to leave office. Overall, the number of open seats decreased from 2012 to 2014, dropping from 21.2 percent in 2012 to 17.0 percent in 2014.

Incumbent win rates: Ballotpedia's competitiveness analysis of elections between 1972 and 2014 documented the high propensity for incumbents to win re-election in state legislative elections. In fact, since 1972, the win rate for incumbents had not dropped below 90 percent—with the exception of 1974, when 88 percent of incumbents were re-elected to their seats. Perhaps most importantly, the win rate for incumbents generally increased over time. In 2014, 96.5 percent of incumbents were able to retain their seats. Common convention holds that incumbents are able to leverage their office to maintain their seat. However, the high incumbent win rate may actually be a result of incumbents being more likely to hold seats in districts that are considered safe for their party.

Marginal primaries: Often, competitiveness is measured by examining the rate of elections that have been won by amounts that are considered marginal (5 percent or less). During the 2014 election, 90.1 percent of primary and general election races were won by margins higher than 5 percent. Interestingly, it is usually the case that only one of the two races—primary or general—will be competitive at a time. This means that if a district's general election is competitive, typically one or more of the district's primaries were won by more than 5 percent. The reverse is also true: If a district sees a competitive primary, it is unlikely that the general election for that district will be won by less than 5 percent. Primaries often see very low voter turnout in comparison to general elections. In 2014, there were only 27 million voters for state legislative primaries, but approximately 107 million voters for the state legislative general elections.

Pivot Counties

See also: Pivot Counties by state

Twelve of 83 Michigan counties—14 percent—are Pivot Counties. Pivot Counties are counties that voted for Barack Obama (D) in 2008 and 2012 and for Donald Trump (R) in 2016. Altogether, the nation had 206 Pivot Counties, with most being concentrated in upper midwestern and northeastern states.

Counties won by Trump in 2016 and Obama in 2012 and 2008
County Trump margin of victory in 2016 Obama margin of victory in 2012 Obama margin of victory in 2008
Bay County, Michigan 12.55% 5.56% 15.31%
Calhoun County, Michigan 12.46% 1.60% 9.36%
Eaton County, Michigan 4.72% 3.13% 8.40%
Gogebic County, Michigan 14.80% 8.10% 17.27%
Isabella County, Michigan 3.66% 9.28% 19.26%
Lake County, Michigan 22.77% 5.01% 12.28%
Macomb County, Michigan 11.53% 3.99% 8.62%
Manistee County, Michigan 15.29% 5.93% 13.26%
Monroe County, Michigan 21.97% 0.98% 4.35%
Saginaw County, Michigan 1.13% 11.89% 17.34%
Shiawassee County, Michigan 19.59% 3.67% 8.59%
Van Buren County, Michigan 13.92% 0.45% 8.78%

In the 2016 presidential election, Donald Trump (R) won Michigan with 47.5 percent of the vote. Hillary Clinton (D) received 47.3 percent. In presidential elections between 1836 and 2016, Michigan voted Republican 60.8 percent of the time and Democratic 34.7 percent of the time. In the five presidential elections between 2000 and 2016, Michigan voted Democratic four out of the five elections.[31]

Presidential results by legislative district

The following table details results of the 2012 and 2016 presidential elections by state Senate districts in Michigan. Click [show] to expand the table. The "Obama," "Romney," "Clinton," and "Trump" columns describe the percent of the vote each presidential candidate received in the district. The "2012 Margin" and "2016 Margin" columns describe the margin of victory between the two presidential candidates in those years. The "Party Control" column notes which party held that seat heading into the 2018 general election. Data on the results of the 2012 and 2016 presidential elections broken down by state legislative districts was compiled by Daily Kos.[32][33]

In 2012, Barack Obama (D) won 17 out of 38 state Senate districts in Michigan with an average margin of victory of 34.3 points. In 2016, Hillary Clinton (D) won 15 out of 38 state Senate districts in Michigan with an average margin of victory of 32.5 points. Clinton won four districts controlled by Republicans heading into the 2018 elections.
In 2012, Mitt Romney (R) won 21 out of 38 state Senate districts in Michigan with an average margin of victory of 8.7 points. In 2016, Donald Trump (R) won 23 out of 38 state Senate districts in Michigan with an average margin of victory of 19.4 points.

See also

External links

Footnotes

  1. 1.0 1.1 Excludes unopposed elections
  2. Ballotpedia defines an incumbent as retiring if the incumbent did not file for office or filed for office but withdrew, was disqualified, or otherwise left a race in a manner other than losing the primary, primary runoff, or convention. If an incumbent runs as a write-in candidate, Ballotpedia does not consider them to be retiring. If an incumbent runs in the same chamber for a different seat, Ballotpedia does not consider them to be retiring.
  3. Johnson resigned his seat before the end of his term. His seat was still counted in the total number of term-limited state senators in 2018.
  4. The Nevada Senate, Arkansas House, and Arkansas Senate were up for election in 2018 and have term limits, but no incumbents were term-limited in 2018.
  5. The Nevada Senate, Arkansas House, and Arkansas Senate are impacted by term limits, but no incumbents were term-limited in 2018. In the three chambers, a total of 129 seats were up for election in 2018. No legislators were unable to run in 2018 in those three chamber because of term limits.
  6. Ballotpedia confirmed through phone calls that at least seven California legislators were term-limited in 2018. The number of California legislators term-limited and the overall number of term-limited state legislators had a chance to change if Ballotpedia could confirm that more members were term-limited in 2018.
  7. Some of the 271 term-limited state legislators in 2018 may resign before their term ends. These legislators were still counted in the total number of term-limited legislators in 2018.
  8. Detroit Free Press, "Michigan House, Senate land 'big fish' business tax incentives," July 12, 2017
  9. Detroit Free Press, "Michigan House, Senate land 'big fish' business tax incentives," July 12, 2017
  10. Detroit Free Press, "Michigan Senate approves more tax breaks for businesses," March 29, 2017
  11. Michigan.gov, "Gov. Rick Snyder's statement regarding passage of Good Jobs legislation," July 12, 2017
  12. Fox2Detroit, "Snyder signs bill to give tax breaks for Michigan jobs," July 26, 2017
  13. MLive.com, "'Good Jobs' bills for new business tax incentives heads to governor," July 12, 2017
  14. Michigan Radio, "Redistricting proposal passes in Michigan," November 6, 2018
  15. The number of state legislative seats available for analysis varied, with as many as 7,795 and as few as 6,835.
  16. Lyndon Johnson's (D) first term began in November 1963 after the death of President John F. Kennedy (D), who was first elected in 1960. Before Johnson had his first midterm in 1966, he was re-elected president in 1964.
  17. Gerald Ford's (R) first term began in August 1974 following the resignation of President Richard Nixon (R), who was first elected in 1968 and was re-elected in 1972. Because Ford only served for two full months before facing the electorate, this election is classified as Nixon's second midterm.
  18. 18.0 18.1 Michigan Election Law, "Section 168.532," accessed March 18, 2025
  19. 19.0 19.1 Michigan Secretary of State, "Affidavit of Identity and Receipt of Filing," accessed March 18, 2025
  20. 20.0 20.1 20.2 20.3 Michigan Department of State, "Preparing, Ciculating, and Filing Petitions for Public Office," accessed March 18, 2025
  21. 21.0 21.1 21.2 Michigan Secretary of State, "Petition Signature Requirement Chart," accessed May 19, 2023
  22. Michigan Election Law, "Section 168.163," accessed March 18, 2025
  23. 23.0 23.1 23.2 Michigan Election Law, "Section 168.686a," accessed March 18, 2025
  24. Michigan Election Law, "Section 168.590c," accessed March 18, 2025
  25. Michigan Election Law, "Section 168.737a," accessed March 18, 2025
  26. 26.0 26.1 Michigan Secretary of State, "Affidavit of Identity and Receipt of Filing," accessed March 25, 2025
  27. Note: This text is quoted verbatim from the original source. Any inconsistencies are attributable to the original source.
  28. Michigan Election Law, "Section 168.145," accessed March 18, 2025
  29. National Conference of State Legislatures, "2024 Legislator Compensation," August 21, 2024
  30. Michigan Constitution, "Article XI, Section 2," accessed February 12, 2021
  31. 270towin.com, "Michigan," accessed June 29, 2017
  32. Daily Kos, "Daily Kos Elections' statewide election results by congressional and legislative districts," July 9, 2013
  33. Daily Kos, "Daily Kos Elections' 2016 presidential results for congressional and legislative districts," February 6, 2017


Current members of the Michigan State Senate
Senators
District 1
District 2
District 3
District 4
District 5
District 6
District 7
District 8
District 9
District 10
District 11
District 12
District 13
District 14
Sue Shink (D)
District 15
District 16
District 17
District 18
District 19
District 20
District 21
District 22
District 23
District 24
District 25
District 26
District 27
District 28
Sam Singh (D)
District 29
District 30
District 31
District 32
District 33
District 34
District 35
Vacant
District 36
District 37
District 38
Democratic Party (19)
Republican Party (18)
Vacancies (1)