Trump ally Jim Banks is running for Senate

• Banks began eyeing a run for the seat after Braun began laying the groundwork to run for Indiana governor, Axios reported in November.

Driving the news: Banks released a launch video Tuesday morning leaning heavily into the culture wars. In it, he vows to "fight back against the radical socialist Democrats who are trying to change America."

• "Radical Democrats and the spineless Republicans are going to do everything they can to stop me, but I need your help in the fight to restore America," he says in the video.
• He also rolled out endorsements from Rep. Larry Bucshon (R-Ind.), Sen. Tom Cotton (R-Ark.) and two Indiana state legislators.

The backdrop: Banks' run comes after he fell just short in his run for House majority whip last November, losing by 9 votes to Rep. Tom Emmer (R-Minn.).

What we're watching: The field could get crowded, with Rep. Victoria Spartz (R-Ind.), Gov. Eric Holcomb and former Gov. Mitch Daniels all signaling interest.

• In contrast with Banks, Daniels, who has been out of politics since 2013, has been positioning himself as a more traditional, post-Trump conservative.