What to know about Tuesday's primaries in Ohio and Indiana
Updated on: May 5, 2026 / 9:36 AM EDT / CBS News
TL;DR
- Ohio and Indiana are holding primary elections on Tuesday.
- Ohio voters will decide on Senate, House, and governor's primary races.
- Indiana voters will participate in House and state races.
- Former President Trump is backing primary challengers in Indiana state Senate races against incumbents who opposed his preferred congressional map.
- Ohio's Senate primary could influence party control of the U.S. Senate.
- The Ohio governor's race features Vivek Ramaswamy, endorsed by Trump, facing limited opposition in the primary.
- Ohio's 9th Congressional District Republican primary has five candidates vying to challenge incumbent Democrat Marcy Kaptur.