2020 Missouri elections


Missouri state elections in 2020 were held on Tuesday, November 3, 2020. Aside from its presidential primaries held on March 10, its primary elections were held on August 4, 2020.
In addition to the 2020 [United States presidential election|U.S. presidential race], Missouri voters elected the Governor of Missouri, four of Missouri's other executive officers, all of its seats to the House of Representatives, all of the seats of the Missouri House of Representatives, and 17 of 34 seats in the Missouri State Senate. Neither of the state's two U.S. Senate seats were up for election this year, but there were two ballot measures voted on, in addition to one voted on in the August 4 primaries.
To vote by mail, registered Missouri voters had to request a ballot by October 21, 2020.

Federal offices

President of the United States

Missouri has 10 electoral votes in the Electoral College.

United States House of Representatives

There are 7 U.S. Representatives in Missouri that will be up for election. Another seat is open after the incumbent, Lacy Clay, lost renomination in its Democratic primary.

Secretary of state

State legislature

All 163 seats of the Missouri House of Representatives and 17 of 34 seats of the Missouri State Senate are up for election. Before the election, the composition of the Missouri State Legislature was:

House of Representatives

After the election, the composition of the Missouri State Legislature was:

Primary election

Senate District 3 - Republican

Polling

Poll sourceDate
administered		Sample
size		Margin
of error		Joshua
Barrett		Elaine Freeman
Gannon		Kent
Scism		Undecided
Remington Research Group/Missouri ScoutJune 24–25, 2020500 ± 4.3%24%23%19%34%

Senate District 5 - Democratic

Polling

Poll sourceDate
administered		Sample
size		Margin
of error		Jeremiah
Church		McFarlane
Duncan		Megan Elliya
Green		William
"Bill" Haas		Peter
Merideth		Steve
Roberts		Michelle
Sherod		Undecided
Remington Research Group/Missouri ScoutApril 1–2, 2020486 ± 4.6%7%1%16%14%–18%9%35%
Remington Research Group/Missouri ScoutDecember 4–5, 2019464 ± 4.6%–3%24%––24%4%45%
Remington Research Group/Missouri ScoutAugust 21–22, 2019501 ± 4.5%––––20%24%13%43%
Remington Research Group/Missouri ScoutAugust 21–22, 2019501 ± 4.5%––32%––23%11%34%
Remington Research Group/Missouri ScoutAugust 21–22, 2019501 ± 4.5%–––––24%21%55%

Senate District 13 - Democratic

Polling

Poll sourceDate
administered		Sample
size		Margin
of error		Alan
Green		Angela
Mosley		Tommie
Pierson Jr.		Undecided
Remington Research Group/Missouri ScoutJune 3–4, 2020545 ± 4.2%15%21%19%45%
Remington Research Group/Missouri ScoutOctober 16–17, 2019421 ± 4.9%15%18%19%48%

Senate District 23 - Republican

Polling

Poll sourceDate
administered		Sample
size		Margin
of error		Bill
Eigel		Dan
O'Connell		Eric
Wulff		Undecided
Remington Research Group/Missouri ScoutJuly 8–9, 2020436 ± 4.8%33%8%7%52%

Senate District 25 - Republican

Polling

Poll sourceDate
administered		Sample
size		Margin
of error		Jason
Bean		Stephen Carroll
Cookson		Eddy
Justice		Jeff
Shawan		Undecided
Remington Research Group/Missouri ScoutJuly 8–9, 2020436 ± 4.8%26%11%23%17%23%
Remington Research Group/Missouri ScoutJuly 30–31, 2019438 ± 4.7%––17%16%67%

Senate District 27 - Republican

Polling

Poll sourceDate
administered		Sample
size		Margin
of error		Holly
Rehder		Kathy
Swan		Undecided
Remington Research Group/Missouri ScoutJuly 16–17, 2020414 ± 4.9%51%29%20%
Remington Research Group/Missouri ScoutAugust 7–8, 2019520 ± 4.3%26%27%48%

Senate District 29 - Republican

Polling

Poll sourceDate
administered		Sample
size		Margin
of error		David
Cole		Mike
Moon		Undecided
Remington Research Group/Missouri ScoutJuly 25–26, 2020504 ± 4.5%34%37%29%
Remington Research Group/Missouri ScoutApril 21–23, 2020536 ± 4.2%15%25%60%
Remington Research Group/Missouri ScoutJuly 17–18, 2019532 ± 4.3%14%21%65%

Senate District 31 - Republican

Polling

Poll sourceDate
administered		Sample
size		Margin
of error		Jack
Bondon		Rick
Brattin		Bill
Yarberry		Undecided
Remington Research Group/Missouri ScoutJuly 21–23, 2020403 ± 4.9%40%34%6%20%
Remington Research Group/Missouri ScoutApril 15–16, 2020419 ± 4.76%16%18%5%60%

Senate District 33 - Republican

Polling

Poll sourceDate
administered		Sample
size		Margin
of error		Karla
Eslinger		Van
Kelly		Robert
Ross		Undecided
Remington Research Group/Missouri ScoutJuly 27–29, 2020503 ± 4.5%20%17%39%24%
Missouri ScoutJuly 12–13, 2020456 ± 4.5%31%12%36%31%
Remington Research Group/Missouri ScoutMay 6–7, 2020568 ± 4.0%15%12%16%57%
Remington Research Group/Missouri ScoutJuly 24–25, 2019510 ± 4.5%–16%15%69%

General election

Senate District 1

Polling

Poll sourceDate
administered		Sample
size		Margin
of error		Doug
Beck 		David
Lenihan 		Undecided
Remington Research Group/Missouri ScoutSeptember 9–10, 2020646 ± 3.8%43%36%21%

Senate District 15

Polling

Poll sourceDate
administered		Sample
size		Margin
of error		Andrew
Koenig 		Deb
Lavender 		Undecided
Remington Research Group/Missouri ScoutOctober 7–8, 2020644 ± 3.8%45%49%6%
Remington Research Group/Missouri ScoutAugust 19–20, 2020585 ± 4%43%43%14%
Remington Research Group/Missouri ScoutMay 29–30, 2019648 ± 3.8%50%35%15%

with Mark Osmack

Poll sourceDate
administered		Sample
size		Margin
of error		Andrew
Koenig 		Mark
Osmack 		Undecided
Remington Research Group/Missouri ScoutMay 29–30, 2019648 ± 3.8%52%33%15%

Senate District 19

Polling

Poll sourceDate
administered		Sample
size		Margin
of error		Caleb
Rowden 		Judy
Baker 		Undecided
Remington Research Group/Missouri ScoutOctober 20–22, 2020489 ± 4.4%48%48%4%
Remington Research Group/Missouri ScoutAugust 26–27, 2020536 ± 4.2%47%42%11%

with Michela Skelton

Poll sourceDate
administered		Sample
size		Margin
of error		Caleb
Rowden 		Michela
Skelton 		Undecided
Remington Research Group/Missouri ScoutSeptember 25–27, 2019446 ± 4.7%50%44%6%

Ballot measures

Missouri Amendment 2, Medicaid Expansion passed in the August 4 primary.
Missouri Amendment 3, Redistricting Process and Criteria, Lobbying, and Campaign Finance Amendment is to amend the state constitution to lower thresholds for lobbyists' gifts, lower campaign contribution limits for state senate campaigns and reverse changes to the redistricting process brought about by the passage of 2018's Missouri Amendment 1, known as
"Clean Missouri". That amendment delegated redistricting to a nonpartisan state demographer and citizens' commission as opposed to the status quo ante of it being left to a bipartisan commission appointed by the governor.

Polling

Primary election

Amendment 2

Poll sourceDate
administered		Sample
size		Margin
of error		For Missouri Amendment 1Against Missouri Amendment 1Undecided
Remington Research Group/Missouri ScoutApril 28–29, 20201,356 ± 2.6%54%32%14%
Human Agency/Missouri ScoutDecember 20–24, 2019415 ± 5%46%33%21%
Human Agency/Missouri ScoutNovember 17–20, 2020400 ± 5%41%29%29%
Remington Research Group/Missouri ScoutNovember 12–13, 20191,641 ± 2.4%57%25%18%
Human Agency/Missouri ScoutSeptember 16–18, 2019825 ± 4.0%42%25%33%
Remington Research Group/Missouri ScoutSeptember 4–5, 2019910 ± 3.3%44%33%23%
Remington Research Group/Missouri ScoutJune 12–13, 2019986 ± 3.2%40%37%23%

General election

Amendment 1

Poll sourceDate
administered		Sample
size		Margin
of error		For Missouri Amendment 1Against Missouri Amendment 1Undecided
YouGov/SLUSeptember 24 – October 7, 2020931 ± 3.9%51%29%20%
Remington Research Group/Missouri ScoutSeptember 20–21, 20201,046 ± 3%60%26%14%

Amendment 3

Poll sourceDate
administered		Sample
size		Margin
of error		For Missouri Amendment 3Against Missouri Amendment 3Undecided
Remington Research Group/Missouri ScoutOctober 28–29, 20201,010 ± 3%29%56%15%
Remington Research Group/Missouri ScoutOctober 14–15, 20201,010 ± 3%28%50%22%
YouGov/SLUSeptember 24 – October 7, 2020931 ± 3.9%35%43%23%
Remington Research Group/Missouri ScoutSeptember 20–21, 20201,046 ± 3%44%30%26%
Remington Research Group/Missouri ScoutAugust 12–13, 20201,112 ± 3.0%46%19%35%