Associated Press: “Indiana’s primary on May 5 has become an unlikely test of Trump’s grip on the Republican Party. After state senators defied White House pressure by opposing redistricting, Trump has endorsed seven primary challengers in races that rarely attract any attention from Washington.”

“The campaign, backed by national organizations such as Turning Point Action and pro-Trump groups that have spent more than $4.2 million on advertising, has no precedent in recent memory. Gov. Mike Braun and U.S. Sen Jim Banks, both Republicans, are also working against incumbent state senators in a display of deference to Trump.”