2018 US Senate Election- Top Tier Republican challengers that have announced they are running.
OH-Josh Mandel-R running against Democratic incumbent Sherrod Brown-D
WV-Evan Jenkins-R running against Democratic incumbent Joe Manchin-D
OH and WV are in the Lean Democratic column.
FL-Bill Nelson-D could be challenged by Rick Scott-R (Lean Democratic) or Tom Rooney-R (Likely Democratic)
IN-Joe Donnelly-D could be challenged by Todd Rokita-R or Luke Messer-R (Tossup/Lean Republican)
MI-Debbie Stabenow-D could be challenged by Fred Upton-R (Likely Democratic)
MO-Claire McCaskill-D could be challenged by Ann Wagner-R (Tossup)
MT-Jon Tester-D could be challenged by Tim Fox-R or Corey Stapleton-R(Lean Democratic)
ND-Heidi Heitkamp-D could be challenged by Kevin Cramer-R or Rick Berg-R(Tossup)
PA-Bob Casey-D could be challenged by Lou Barletta-R(Lean/Likely Democratic)
VA-Tim Kaine-D could be challenged by Barbara Comstock-R(Likely Democratic)
WI-Tammy Baldwin-D could be challenged by Rebecca Kleefish-R (Lean Democratic)
Democrats will lose IN and narrowly hold onto MO and ND. Democrats will win MT,OH,and WV by a high single digit margin.
Democrats will pick up NV(Kate Marshall-D).
