ABC News reports that state Sen. Mark Messmer is projected to win the crowded GOP primary in Indiana's 8th District, which is currently held by Rep. Larry Buschon. Messmer defeated former Rep. John Hostettler and several other candidates in a race that attracted significant outside spending.

—Jacob Rubashkin, Inside Elections

Indianapolis’s Marion County is reporting votes now in Indiana’s 6th, too. And according to the AP, Shreve is beating Speedy there 38 percent to 29 percent, likely cutting off any chance for the more conservative Speedy to prevail.

—Nathaniel Rakich, 538

The Associated Press has projected that state Sen. Mark Messmer has won the GOP nomination in the 8th District. He will likely win the general election this fall. ABC News is not reporting a projection in the race yet, but Messmer has about 43 percent of the vote — 27 percent more than his closest challenger — with 40 percent of the expected vote reporting.

—Jacob Rubashkin, Inside Elections

We’re up to about half of the expected vote counted in Indiana‘s 6th District, and Jefferson Shreve is still holding steady in the lead with 29 percent. Jamison Carrier and Mike Speedy are running behind at 21 and 20 percent, respectively.

—Jacob Rubashkin, Inside Elections

Tonight, we'll be monitoring how candidates of color perform in primaries for governor, U.S. Senate and the U.S. House of Representatives. Overall, 11 people of color are running in these contests — six Republicans and five Democrats.

The most likely primary winner is Democratic Rep. André Carson, who is Indiana's lone Black representative on Capitol Hill (and was also only the second Muslim ever elected to Congress). Democrats in the solidly blue 7th District look set to renominate him against two little-known Black Democrats.

In the dark-red 4th District, insurance executive Rimpi Girn is an Indian immigrant who has raised at least a little money, so she may be the favorite for the Democratic nomination — but a November defeat against GOP Rep. Jim Baird is a near-certainty.

In the Democratic primary for U.S. Senate, clinical psychologist Valerie McCray is running a long-shot race to become the state's first Black U.S. senator. She ran for the state's 2022 Senate contest but failed to make the ballot and briefly ran for president in 2020. However, she's raised only $14,800, less than the $112,000 former state Rep. Marc Carmichael has brought in. Still, either Democrat will be a huge underdog against Rep. Jim Banks in the general election.

It's less clear if any candidate of color has a shot at winning a GOP primary. On paper, the contender with the best chance might be "Honest Gabe" Whitley, who has raised $364,000 in the solidly Democratic 7th District, making him the only Republican in that race to have reported raising anything. But Whitley is a lightning rod of controversy: Among other things, he faces accusations of concocting false donors and a fictional veterans organization to back his candidacy.

In the 5th District, speech-language pathologist and business owner Raju Chinthala is running, but he's unlikely to finish ahead of the incumbent Spartz or her leading challenger, Goodrich. Two Republican Latino candidates are running in the 1st District — Mark Levya and Ben Ruiz — but Lake County Councilmember Randy Niemeyer is the party's preferred candidate to take on Democratic Rep. Frank Mrvan.

Lastly, the best-known Republican on this list is Curtis Hill, who is making a long-shot bid for governor. Hill lost renomination for state attorney general in 2020 after allegations came out that he had groped a group of women at a party.

—Geoffrey Skelley, 538