Indiana voters are casting ballots Tuesday in a series of House primary elections that will set the stage for November's general election, with most incumbents expected to easily secure their party's nomination.

Seven Republican representatives are seeking reelection: Rudy Yakym (2nd District), Marlin Stutzman (3rd), Jim Baird (4th), Victoria Spartz (5th), Jefferson Shreve (6th), Mark Messmer (8th), and Erin Houchin (9th). On the Democratic side, Reps. Frank Mrvan (1st) and Andrew Carson (7th) are running to hold their nominations.

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Polls close at 6 p.m. EDT, and live results from The Hill's Decision Desk HQ will track the outcomes throughout the evening.

The primaries come amid heightened national attention on former President Donald Trump's influence over the GOP, though most Indiana incumbents face minimal internal opposition. Still, the races offer an early test of party dynamics ahead of the 2026 midterms.

In the 2nd District, Yakym seeks to hold the seat he first won in a 2022 special election. Stutzman, a former congressman returning after a stint outside office, faces no serious primary challenge in the 3rd. Baird, a veteran and farmer, is uncontested in the 4th, while Spartz—who briefly considered a Senate run—faces a quieter primary than in previous cycles.

Shreve, a former Indianapolis mayoral candidate, is running in the safely Republican 6th District. Messmer and Houchin both represent rural and exurban districts where GOP primaries are typically low-key.

On the Democratic side, Mrvan represents the competitive 1st District, which includes Gary and Lake County, while Carson runs in the safely Democratic 7th, covering most of Indianapolis. Neither faces significant primary opposition.

Indiana's primaries are part of a broader Tuesday slate that includes Ohio's Senate primary, where Sen. Sherrod Brown faces a tough reelection bid against Republican Bernie Moreno. The Buckeye State also sees Republican businessman Vivek Ramaswamy leading the GOP gubernatorial primary.

With few competitive primaries, the Indiana contests are unlikely to shift the national balance of power, but they will solidify the field for a general election where control of the House remains up for grabs. Republicans currently hold a slim majority, and Democratic gains in the Midwest could prove decisive.

As results trickle in, political analysts will watch for turnout signals and any signs of intra-party friction. For now, incumbents in both parties appear poised to advance, setting up a fall campaign focused on economic concerns, healthcare, and federal spending.