Indiana Senators Outraise Trump-Endorsed Challengers

Senators face dark money ad blitz as they outpace Trump-backed opponents in fundraising

Apr. 20, 2026 at 12:05pm

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A cinematic painting of the Indiana state capitol building in warm, golden light, with a single solitary figure standing in front of the entrance, conveying a sense of political drama and tension.The Indiana statehouse stands as a backdrop to the state's heated Senate race, where establishment Republicans face off against Trump-backed challengers.Indianapolis Today

Indiana's Republican senators have outraised their Trump-endorsed challengers, but now face a barrage of dark money attack ads as the 2026 election cycle heats up. The incumbent senators have drawn the ire of former President Trump for voting against his agenda on congressional redistricting in the state.

Why it matters

The 2026 Senate race in Indiana is shaping up to be a key battleground, with the Republican establishment clashing against Trump's influence in the party. The outcome could have major implications for the balance of power in the U.S. Senate.

The details

Incumbent Senators Chris Garten and Tina Buck have significantly outraised their Trump-endorsed primary challengers in the first quarter of 2026, bringing in over $4 million each compared to just $2 million for their opponents. However, a flood of dark money attack ads have started airing against the senators, criticizing their votes against Trump's agenda on issues like congressional redistricting.

  • On December 11, 2025, Sen. Chris Garten gave a passionate speech in favor of redrawing Indiana's congressional maps.
  • The 2026 Indiana Republican primary election is scheduled for May 5.

The players

Sen. Chris Garten

A Republican senator from Indiana who has served in the U.S. Senate since 2019.

Sen. Tina Buck

A Republican senator from Indiana who has served in the U.S. Senate since 2015.

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What’s next

The Indiana Republican primary election will be held on May 5, 2026, where the Trump-endorsed challengers will face off against the incumbent senators.

The takeaway

The 2026 Indiana Senate race highlights the ongoing tensions within the Republican Party, as establishment figures clash with Trump's continued influence. The outcome could have major implications for the balance of power in the U.S. Senate.