The 2018 United States Senate election in Mississippi took place on November 6, 2018, in order to elect a member of the United States Senate to represent the state of Mississippi. Incumbent Republican Roger Wicker was re-elected to a second full term, defeating his Democratic challenger, David Baria.
The candidate filing deadline was March 1, 2018, and the primary election was held on June 5, 2018, with a runoff on June 26 if a party's primary fails to produce a majority winner. The race took place on the same day as the nonpartisan jungle primary for the other U.S. Senate seat in Mississippi, which was vacated by Thad Cochran in the spring of 2018.
Republican primary
Candidates
Declared
Roger Wicker, incumbent U.S. Senator
Richard Boyanton, businessman
Withdrawn
Chris McDaniel, state senator and candidate for the U.S. Senate in 2014 (running for the Class 2 U.S. Senate seat)
Endorsements
Results
Democratic primary
Candidates
Declared
David Baria, Mississippi House of Representatives Minority Leader
Jensen Bohren
Jerone Garland
Victor G. Maurice Jr. Omeria Scott, state representative Howard Sherman, businessman
Declined
Jeramey Anderson, state representative (running for MS-4) Brandon Presley, chair of the Mississippi Public Service Commission
Endorsements
Polling
Results
Runoff results
Independents and third party candidates
Libertarian Party
Declared
Danny Bedwell, candidate for MS-01 in 2012 and 2014
Reform Party
Declared
Shawn O'Hara, perennial candidate
General election
Predictions
Fundraising
Polling
Results
Counties that flipped from Democratic to Republican
Copiah (Largest city: Hazlehurst) Panola (Largest city: Batesville) Pike (Largest city: McComb) Yazoo (Largest city: Yazoo City)