The Republican primary in Colorado's 8th District — one of the most competitive House districts in the nation — is causing a bit of intraparty drama (a common theme tonight). Republicans here are hoping to unseat first-term Democratic incumbent Rep. Yadira Caraveo in this highly competitive district that spans the Denver suburbs and rural counties to the north. (Caraveo is the first person to hold the seat, which was created after apportionment in the 2022 cycle.) At first blush, Gabe Evans would seem like a shoo-in for this race. He's an Army vet, former police officer and former state representative who has outraised his competitor, and he's been endorsed by both Trump and the Koch brothers' Americans for Prosperity. But his competitor, retired doctor and former state Rep. Janak Joshi, got the controversial state party endorsement. As a result, it's unclear which direction the voters in this district may ultimately go, and if the candidate they choose will be strong enough to defeat Caraveo.

—Kaleigh Rogers, 538

In the Republican runoff in South Carolina's 3rd District, 12 percent of the expected vote has reported, and Biggs leads Burns by about 8 percentage points, 54 percent to 46 percent, according to the Associated Press. Remember, Burns has Trump's endorsement, but the early returns suggest a potentially close race. Still, there's a long way to go.

—Geoffrey Skelley, 538

In Colorado's 5th District, around Colorado Springs, there's a competitive GOP race to replace retiring GOP Rep. Doug Lamborn. The battle is between conservative radio host Jeff Crank and Dave Williams, the state GOP chair. Along with his talk radio gig, Crank has a background in politics, having previously worked as a regional vice president for Americans for Prosperity, and a staffer for former Rep. Joel Hefley.

Crank is the more traditional conservative pick, whereas Williams, a former state representative, has made a name for himself in the state as a MAGA provocateur and has been endorsed by the political arm of the far-right House Freedom Caucus. In 2022, when he challenged Lamborn in the primary, Williams petitioned (and failed) to add the slogan "Let's Go Brandon" to his name on the ballot, and as leader of the state party, he has taken it on a polarizing and notably hard-right tack. Under his leadership, the party advised county canvass boards not to certify the 2022 election results, and has sent out emails calling LGBTQ+ pride month "evil." It has also started endorsing candidates in primaries, something the party historically remained neutral on.

Perhaps unsurprisingly, this has led conservative power brokers to dump millions into the race: The Koch Brothers' PAC has spent over $100,000 supporting Crank, while a super PAC of Republican megadonors has spent $1.2 million opposing Williams. As the only district in the state to have never been represented by a Democrat in Congress, the GOP primary will be a crucial one to watch to see if the ranks of the Freedom Caucus are likely to grow by one.

—Kaleigh Rogers, 538

As usual, tonight we'll be tracking candidates in Colorado's, New York's and Utah's primaries, along with one runoff in South Carolina, whose campaign websites use the phrase "pro-life," "sanctity of life," "right to life," "protect life," "no abortion," "against abortion" or "unborn" and do not say abortion is an issue of states' rights.

In South Carolina, abortion is banned after six weeks. In the 3rd District runoff there, Biggs describes herself as anti-abortion and has promised to "defend the sanctity of life" if elected. She has also been endorsed by Susan B. Anthony Pro-Life America.

Abortion is banned in Utah after 18 weeks. All four Republican Senate candidates and at least one Republican House candidate in each of the state's four congressional districts are on our list, including 4th District Rep. Burgess Owens, who is running unopposed. Republican Gov. Spencer Cox is also anti-abortion, but he is nevertheless facing a challenge from the right by state Rep. Phil Lyman, who argues the governor is too moderate overall. Whoever wins the primary is likely to succeed in November against the Democratic challenger, state Rep. Brian King.

By contrast, New York law protects abortion rights, and voters may have a chance to enshrine abortion rights into the state constitution if a proposed Equal Rights Amendment makes it onto the November ballot. Three Republican candidates in New York state are on our list. In the Republican-leaning 23rd and 24th districts, Rep. Nicholas Langworthy is running unopposed, and Mario Fratto, who lost to Rep. Claudia Tenney in 2022, is challenging the incumbent from the right again. But the Republican incumbent in the 22nd district, Rep. Brandon Williams, is more vulnerable, as redistricting left the district slightly bluer. Indeed, while New York Democrats plan to campaign on abortion rights to drive voters to the polls in November, Republicans in the state have been downplaying the issue.

—Monica Potts, 538

The AP projects that New York Rep. Claudia Tenney will win the Republican primary in New York's 24th District. We figured she was favored, but Tenney only defeated the same opponent, businessman Mario Fratto, by 14 points in the 2022 primary here, so we were keeping an eye on this one. However, with 36 percent of the expected vote reporting, Tenney leads 65 percent to 35 percent, per AP, so she looks set to survive and win reelection in this solidly red Upstate seat.

—Geoffrey Skelley, 538