Here’s everything you need to know:
In the race for Ohio governor, Republican incumbent Mike DeWine faces several primary challengers running to his right. On the Democratic side, two former mayors go head-to-head for their party’s nomination.
Indiana’s Democratic and Republican Senate primaries are both uncontested. Incumbent GOP Sen. Todd Young will face Democrat Thomas McDermott, the mayor of Hammond, in November.
What time does CNN’s coverage start?
What time do polls close?
Polls for in-person voting in Indiana Tuesday close at either 6 p.m. or 7 p.m. ET, depending on which county you live in. In Ohio, polls close at 7:30 p.m. ET.
In Indiana, some voters could vote by mail and all voters could vote early in person. Mail-in ballots must be returned by close of polls Tuesday. In-person early voting ran from April 5 to May 2.
In Ohio, all voters could vote by mail and early in person. Mail ballots had to have been postmarked no later than May 2 (Monday) and received by the county board of elections no later than May 13. In-person early voting ran from April 5 to May 2.
CNN Politics has several election-related resources available to readers.
- Vance tests Trump’s influence in Ohio primary: Vance’s bid for the Ohio Republican Senate nomination has turned into the clearest early test in this year’s midterm elections of Trump’s influence over the candidates whom GOP primary voters back and the policies that animate the party.
- ‘It’s created a bit of chaos’: How Trump’s involvement is shaking up the Ohio Senate race: Trump shook up the race when he plucked Vance from a pack of better-polling rivals, hoping that his endorsement of the venture capitalist, whose memoir “Hillbilly Elegy” became a Netflix movie, would be enough to carry the candidate through the wide-open May 3 primary to replace Portman.
- Trump unleashes his temper on GOP allies over Ohio Senate primary split: The relationship between Trump and the Club for Growth appears to have taken a new turn after the group doubled down on its support of Ohio Senate hopeful Josh Mandel despite the former President’s endorsement of Vance.
- A tough state in a tough year: Tim Ryan looks to overcome Democratic headwinds in Ohio: No Democrat not named Sherrod Brown has won a nonjudicial statewide election in Ohio since 2008. US Rep. Tim Ryan is hoping to change that this year as he bids for Senate.
- Here are the key House primaries to watch in Ohio and Indiana: The Ohio Senate race may be grabbing the headlines, but there are several House primaries taking place Tuesday that are worth paying attention to.
- Why May matters for the future of the Senate: A play-by-play explainer laying out what’s at stake this month, where the competitive races are and how both parties are approaching the elections.