Republican Seats and the Challengers
These Republican seats are up for re-election in 2020.
"Don't agonize, organize!"
Alaska:
Date of Primary: 08/18/2020
Republican Primary candidate: Dan Sullivan
Democratic primary candidates: No Democratic candidate has filed to run in this election.
Arizona:
Date of Primary: 08/04/2020
Republican Primary candidate: Martha McSally
Democratic primary candidates:
- Mohammad Arif
- Sheila Bilyeu
- Mark Kelly
- Juan Angel Vasquez
Arkansas:
Date of Primary: 03/03/2020
Republican Primary candidate: Tom Cotton
Democratic primary candidates:
The Democratic primary was canceled.
Colorado:
Date of Primary: 06/30/2020
Republican Primary candidate: Cory Gardner
Democratic primary candidates:
- Diana Bray
- Lorena Garcia
- David Goldfischer
- John Hickenlooper
- Dustin John Leitzel
- Christopher Hawkins Critter Milton
- Andrew Romanoff
- Stephany Rose Spaulding
- Erik Underwood
- Michelle Ferrigno Warren
- Trish Zornio
Georgia:
Date of Primary: 05/19/2020
Republican Primary candidate:
- David Perdue
- Kelley Loeffler (appointed to the seat vacated by Isakson)
Democratic primary candidates:
- Sarah Riggs Amico
- Akhenaten Amun
- Marckeith DeJesus
- Maya Dillard Smith
- James Knox
- Jon Ossoff
- Harold Shouse
- Teresa Tomlinson
- Elaine Whigham Williams
Idaho:
Date of Primary: 05/19/2020
Republican Primary candidate: James E Risch
Democratic primary candidates:
- Nancy Harris
- Travis Oler
- James Vandermaas
Iowa:
Date of Primary: 06/02/2020
Republican Primary candidate: Joni Ernst
Democratic primary candidates:
- Michael Franken
- Kimberly Graham
- Theresa Greenfield
- Eddie Mauro
- Cal Woods
Kansas:
Date of Primary: 08/04/2020
Republican Primary candidate: Pat Roberts
Democratic primary candidates:
- Barbara Bollier
- Usha Reddi
- Adam Smith
- Robert Tillman
Kentucky:
Date of Primary: 05/19/2020
Republican Primary candidate: Mitch McConnell
Democratic primary candidates:
- Jimmy Ausbrooks
- Charles Booker
- Mike Broihier
- Maggie Jo Hilliard
- Andrew Maynard
- Amy McGrath
- Eric Rothmuller
- John Sharpensteen
- Bennie Smith
- Mary Ann Tobin
Louisiana:
Date of Primary: ?
Republican Primary candidate: John Kennedy
Democratic primary candidates:
- Antoine Pierce
Maine:
Date of Primary: 06/09/2020
Republican Primary candidate: Susan M Collins
Democratic primary candidates:
- Michael Bunker
- Sara Gideon
- Bre Kidman
- Ross LaJeunesse
- Betsy Sweet
Mississippi:
Date of Primary: 03/10/2020
Republican Primary candidate: Cindy Hyde-Smith
Democratic primary candidates:
- Tobey Bartee
- Jensen Bohren
- Mike Espy
Montana:
Date of Primary: 06/02/2020
Republican Primary candidate: Steve Daines
Democratic primary candidates:
- Wilmot Collins
- Mike Knoles
- John Mues
- Cora Neumann
Nebraska:
Date of Primary: 05/12/2020
Republican Primary candidate: Ben Sasse
Democratic primary candidates:
- Chris Janicek
- Dennis Macek
- Angie Philips
- Alisha Shelton
North Carolina:
Date of Primary: 03/03/2020
Republican Primary candidate: Thom Tillis
Democratic primary candidates:
- Cal Cunningham
- Trevor Fuller
- Atul Goel
- Erica Smith
- Steve Swenson
Oklahoma:
Date of Primary: 06/30/2020
Republican Primary candidate: James M Inhofe
Democratic primary candidates:
- Dylan Billings
- Elysabeth Britt
- Abby Broyles
- Tyler Dougherty
- Bevon Rogers
- Paul Tay
- Mike Workman
South Carolina:
Date of Primary: 06/09/2020
Republican Primary candidate: Lindsey Graham
Democratic primary candidates:
- Jaime Harrison
- Matthew Knights
- William Stone
- Justin Wooton
South Dakota:
Date of Primary: 06/02/2020
Republican Primary candidate: Mike Rounds
Democratic primary candidates:
- Dan Ahlers
- Clara Hart
Tennessee:
Date of Primary: 08/06/2020
Republican primary candidates: Lamar Alexander (retiring)
Democratic primary candidates:
- Marquita Bradshaw
- Tharon Chandler
- Gary Davis
- James Mackler
- Diana Onyejiaka
Texas:
Date of Primary: 03/03/2020
Republican primary candidates: John Cornyn
Democratic primary candidates:
- Chris Bell
- Michael Cooper
- Amanda Edwards
- Jack Daniel Foster Jr.
- Annie Garcia
- Victor Harris
- Mary Jennings Hegar
- Sema Hernandez
- D.R. Hunter
- Adrian Ocegueda
- Cristina Tzintzún Ramirez
- Royce West
West Virginia:
Date of Primary: 05/12/2020
Republican primary candidates: Shelley Moore Caputo
Democratic primary candidates:
- Richard Ojeda
- Richie Robb
- Paula Jean Swearengin
Wyoming:
Date of Primary: 08/18/2020
Republican primary candidates: Michael B Enzi
Democratic primary candidates:
- Merav Ben-David
- Chuck Jagoda
- Yana Ludwig
Data compiled with information from this website and Ballotpedia