The 2018 United States Senate election in Missouri took place on November 6, 2018, to elect a member of the United States Senate to represent the State of Missouri, concurrently with other elections to the United States Senate, elections to the United States House of Representatives, and various state and local elections, including Missouri's quadrennial State Auditor election. Incumbent

Democratic Democrat, Democrats, or Democratic may refer to: Politics *A proponent of democracy, or democratic government; a form of government involving rule by the people. *A member of a Democratic Party: **Democratic Party (United States) (D) **Democratic ...

Senator Claire McCaskill ran for re-election to a third term. McCaskill easily won her party's nomination, defeating several minor candidates in the primary, while Missouri Attorney General Josh Hawley comfortably won the Republican primary. The candidate filing deadline was March 27, 2018, and the primary election was held on August 7, 2018. Pollsters predicted a tight race, however Hawley defeated McCaskill on election day by 5.8%, taking 51.4% of the vote to McCaskill's 45.6%, a somewhat larger margin than expected. This resulted in Republicans holding both Senate seats in Missouri for the first time since McCaskill took office in 2007. Hawley was also the youngest incumbent senator at that time and continued to be until the election of Jon Ossoff in 2021.

Democratic primary

Candidates

Nominated

* Claire McCaskill, incumbent U.S. Senator

Eliminated in primary

* Angelica Earl, former insurance verification specialist * David Faust * Travis Gonzalez, perennial candidate * John Hogan, perennial candidate * Leonard Steinman, perennial candidate * Carla (Coffee) Wright

Endorsements

Results

Republican primary

Candidates

Nominated

* Josh Hawley, Missouri Attorney General

Eliminated in primary

* Austin Petersen, businessman and

Libertarian Libertarianism (from french: libertaire, "libertarian"; from la, libertas, "freedom") is a political philosophy that upholds liberty as a core value. Libertarians seek to maximize autonomy and political freedom, and minimize the state's e ...

candidate for presidential nomination in

2016 File:2016 Events Collage.png, From top left, clockwise: Bombed-out buildings in Ankara following the 2016 Turkish coup d'état attempt; the impeachment trial of Brazilian President Dilma Rousseff; Damaged houses during the 2016 Nagorno-Karabakh ...

*Brian Hagg * Bradley Krembs * Tony Monetti, retired bomber pilot and assistant dean of aviation at University of Central Missouri * Kristi Nichols, activist and candidate for the U.S. Senate in

2010 File:2010 Events Collage New.png, From top left, clockwise: The 2010 Chile earthquake was one of the strongest recorded in history; The Eruption of Eyjafjallajökull in Iceland disrupts air travel in Europe; A scene from the opening ceremony of ...

and

* Ken Patterson, candidate for St. Louis County Executive in 2010 * Peter Pfeifer * Fred Ryman, Constitution nominee for the U.S. Senate in

* Christina Smith * Courtland Sykes, veteran and former congressional aide

Withdrew

* Camille Lombardi-Olive, Democratic candidate for

MO-07 Missouri's 7th congressional district consists of Southwest Missouri. The district includes Springfield, the home of Missouri State University, and the popular tourist destination city of Branson. Located along the borders of Kansas, Oklahoma, a ...

Declined

* Ann Wagner, U.S. Representative and former U.S. Ambassador to Luxembourg * Aaron Hedlund, economics professor *

Paul Curtman Paul Curtman (born April 21, 1981) is an American politician who served as a member of the Missouri House of Representatives for the 105th and 109th districts from 2011 to 2019. Early life and education Curtman was born to Judith and Dr. Charles ...

, state representative * Eric Greitens, former Governor of Missouri * Vicky Hartzler, U.S. Representative * Todd Richardson, Speaker of the Missouri House of Representatives *

Eric Schmitt Eric Stephen Schmitt (born June 20, 1975) is an American lawyer and politician serving as the junior United States senator from Missouri since 2023. A member of the Republican Party, Schmitt served as a Missouri state senator from 2009 to 201 ...

, state treasurer * David Wasinger, attorney *

Marsha Haefner Marsha Haefner (born July 8, 1951) is an American politician. She was a member of the Missouri House of Representatives, serving since first being elected in 2010 to January 2019. She is a member of the Republican Party. Public office Haefner wa ...

, state representative * Ed Martin, former chairman of the Missouri Republican Party, nominee for

MO-03 Missouri's third congressional district is in the eastern and central portion of the state. It surrounds but does not include St Louis City. Its current representative is Republican Blaine Luetkemeyer. The district took its current form in 201 ...

and nominee for attorney general in

2012 File:2012 Events Collage V3.png, From left, clockwise: The passenger cruise ship Costa Concordia lies capsized after the Costa Concordia disaster; Damage to Casino Pier in Seaside Heights, New Jersey as a result of Hurricane Sandy; People gather ...

Endorsements

Debates

Polling

Results

Libertarian primary

Candidates

Nominated

* Japheth Campbell, entrepreneur

Withdrew

* Don Donald * Dennis Lagares

Declined

* Alicia Dearn, attorney and candidate for Vice President of the United States in

* Austin Petersen, Libertarian candidate for President of the United States in 2016 (running as a Republican)

Results

Green primary

Candidates

Nominated

* Jo Crain

Eliminated in primary

* Jerome Bauer

Results

Independents

Candidates

Declared

*Craig O'Dear, attorney

General election

Predictions

Debates

Complete video of debate
October 18, 2018

Fundraising

Polling

;with Austin Petersen ;with generic Republican ;with Vicky Hartzler ;with Blaine Luetkemeyer ;with Todd Richardson ;with Eric Schmitt ;with Jason Smith

Results

Sen. McCaskill conceded a few hours after the polls closed on Election day. Despite performing strongly in the St. Louis suburbs, she ran well behind her 2012 vote in Southeast Missouri, especially in the Lead Belt and the Missouri Bootheel. She also ran poorly in the northern part of the state. Despite McCaskill's loss, Missouri Democrats held the other statewide office that went up for election in this cycle, the office of

Missouri State Auditor The state auditor of Missouri is an elected constitutional officer in the executive branch of government of the U.S. state of Missouri. Thirty-eight individuals have occupied the office of state auditor since statehood. The incumbent is Nicole Gal ...

. Democratic incumbent state auditor Nicole Galloway, who had been appointed to the post in 2015 by then-Gov. Jay Nixon following a vacancy, won a full term in the 2018 State Auditor election.

References

External links

Candidates
at Vote Smart
Candidates
at

Ballotpedia Ballotpedia is a nonprofit and nonpartisan online political encyclopedia that covers federal, state, and local politics, elections, and public policy in the United States. The website was founded in 2007. Ballotpedia is sponsored by the Lucy Bur ...

Campaign finance
at FEC
Campaign finance
at OpenSecrets ;Official campaign websites
Japheth Campbell (L) for SenateJo Crain (G) for SenateJosh Hawley (R) for SenateClaire McCaskill (D) for Senate

Craig O'Dear (I) for Senate
{{DEFAULTSORT:United States Senate Election In Missouri, 2018

2018 File:2018 Events Collage.png, From top left, clockwise: The 2018 Winter Olympics opening ceremony in PyeongChang, South Korea; Protests erupt following the Assassination of Jamal Khashoggi; March for Our Lives protests take place across the United ...

Missouri 2018 Missouri elections