ABC News reports that Sen. Mike Braun is projected to win the Republican primary in the Indiana governor's race, making him the favorite to win in the general election this fall.

—Monica Potts, 538

ABC News reports that Valerie McCray is projected to win the Democratic primary for U.S. Senate. With 21 percent of the expected vote reporting, McCray has 67 percent of the vote over Marc Carmichael's 33 percent. McCray will face long odds against Rep. Jim Banks, the Republicans' one and only candidate on their primary ballot today, in November.

—Irena Li, 538

Over on Bluesky, Boston magazine contributing editor David Bernstein shared that the GOP has nominated men in all 10 open-seat solid-Republican districts going into tonight. A similar outcome for Democrats would be shocking, given that a vast majority of Democrats say that there are too few women in politics. But the GOP doesn’t share the same sentiment.

In 2020, we watched where Republicans were nominating women and found that, through August 2020, only 6 out of the 77 Republican women who had won their primaries did so in a safe Republican seat. A whopping 49 of those women won in safe Democratic seats.

In other words, the GOP women won primaries in places where they wouldn’t win in November. We’ll have more to say about that this year, after a few more primaries have passed.

—Meredith Conroy, 538 contributor

While it’s well known that McCormick used to be a Republican before switching parties in 2021, it’s perhaps less well known that Braun also used to be registered with the opposite party.

Braun was registered as a Democrat until the 2012 cycle, perhaps a surprise for a politician ranked among the most conservative in the Senate based on DW-NOMINATE. In 2018, when he ran for Senate, he told CNN that he was only registered as a Democrat in order to vote in local primary elections and that he has always identified as a Republican regardless of his registration status.

In any case, at least according to the official records, the governor’s race in Indiana looks like it will be between two party-switchers, perhaps emblematic of the upheaval in partisan alignment we’ve seen across the nation in the last decade.

—Mary Radcliffe, 538

OK, after an action-packed night of Republican primaries, we’re calling it a night on here! It was a good night for embattled incumbents, establishment-backed pragmatists and supporters of Israel. Here’s a rundown of who won all the major Indiana races:

- Sen. Mike Braun walked into the Republican primary for governor as the favorite, and he walked away with the victory, despite his opponents’ strong fundraising and attacks against him. The truth is, though, there weren’t huge differences between the candidates on most issues.

- The closest race of the night was the GOP primary for Indiana’s 3rd District. ABC News is not yet reporting a projection in that race, but other outlets (such as the AP) have called it for former Rep. Marlin Stutzman. The conservative hardliner beat out several other candidates, including more moderate former Judge Wendy Davis and businessman Tim Smith.

- The one incumbent under threat tonight was Republican Rep. Victoria Spartz in the 5th District, but Spartz held off state Rep. Chuck Goodrich in her primary. Spartz had waffled on whether she’d run for reelection, having originally said in February 2023 that she wouldn’t seek another term. But this past February, she decided just before the filing deadline to run again, and she overcame Goodrich’s sizable financial edge to win renomination.

- In Indiana’s 6th District, wealthy storage company owner Jefferson Shreve outpaced a crowded Republican field. Aided by millions in self-funding and residual name ID from his recent and expensive run for Mayor of Indianapolis, the moderate Shreve outpaced more conservative candidates Mike Speedy and Jamison Carrier. He’ll be a shoo-in in the fall to replace retiring GOP Rep. Greg Pence.

- State Sen. Mark Messmer won a comfortable victory over a crowded GOP field in Indiana’s 8th District. The race attracted some national attention because a pro-Israel super PAC pumped seven figures into defeating another GOP candidate, former Rep. John Hostettler, who often voted against aid to Israel when he represented the area in the 1990s and 2000s. Messmer ultimately outpaced Hostettler by 20 percentage points and will be heavily favored in the general election this fall.

—Monica Potts, Nathaniel Rakich and Geoffrey Skelley, 538, and Jacob Rubashkin, Inside Elections

CORRECTION (May 8, 2024, 11:12 a.m.): A previous version of this blog entry misidentified Indiana 6th District Republican primary candidate Jamison Carrier as Jamison Crowder.