What to watch in Tuesday’s primaries in Indiana and Ohio | CNN Politics

A set of May primaries will test the strength of Donald Trump’s grip on the Republican Party and the role the president intends to play as GOP voters pick their candidates knowing he’ll never again appear on the ballot. In Indiana on Tuesday, Trump is intervening in seven ordinarily sleepy state Senate races, seeking to purge a GOP old guard that rejected his demands to redistrict the state’s US House map. It’s the first of several primaries in which Trump could play a dominant role this month — with a US House race in Kentucky, where Trump is seeking to oust one of his foremost conservative challengers, Rep. Thomas Massie, and a Senate runoff in Texas, where Trump has stayed out of the race despite GOP leaders’ hopes he would back Sen. John Cornyn over Attorney General Ken Paxton, also being closely watched. Ohio will also hold its primary on Tuesday. Here’s what to watch in Indiana and Ohio: Indiana’s Senate Republican supermajority embarrassed the president in December, when it ignored his months of lobbying and voted down a new congressional map that would have likely allowed the party to win the state’s two Democratic-held US House seats in November’s midte