Greg Lopez, the Republican nominee in the special election in Colorado’s 4th District (to fill Rep. Buck's vacant seat), is well ahead with about two-thirds of the vote counted so far. According to the AP, he leads Democrat Trisha Calvarese, 55-38 percent. That 17-point margin is roughly in line with how the district voted in the last presidential election (for Trump by 19 points).

—Jacob Rubashkin, Inside Elections

Perhaps uniquely among states that have held their primaries so far, Colorado voters are particularly concerned with on housing, according to a March poll from New Bridge Strategy/Aspect Strategic/The Colorado Polling Institute. Asked in an open-ended question to name the most important issue for the state government to address, 23 percent of likely voters in the state named homelessness, housing affordability or lack of housing — more than any other issue area. Twenty-one percent named issues related to the economy, including taxes, the cost of living, jobs and inflation. Fourteen percent named issues related to immigration. No other issues were named by more than 6 percent of respondents.

—Mary Radcliffe, 538

The AP projects that Biggs has defeated Burns in the GOP runoff in South Carolina's 3rd District. With more than 95 percent of the expected vote reporting, she leads 51.1 percent to 48.9 percent — what looks to be a narrow win. This is a somewhat surprising result: Trump had endorsed Burns, who led in the initial primary vote on June 11 and even had an endorsement from the third-place finisher.

But Biggs may have triumphed thanks to more than $500,000 in outside help from two conservative super PACs that have been spending against more anti-establishment candidates in GOP primaries like Burns. Per FEC data, Conservatives for American Excellence and America Leads Action spent mostly against Burns but also made some outlays to support Biggs.

—Geoffrey Skelley, 538

With 24 percent of the expected vote in, Mannion is leading Hood in the Democratic primary in the 22nd Congressional District, 60 percent to 40 percent, according to the AP. Hood had hoped to position herself to Mannion's left on issues like abortion and has a fundraising advantage, as Geoffrey wrote earlier. But Mannion, a state Senator, is a well-known entity in much of the district.

—Monica Potts, 538

Tonight, we'll be monitoring how candidates of color perform in primaries for Senate, House and governor. Overall, 19 people of color — 12 Democrats and seven Republicans — are running in these contests, all for the House.

Each state has a candidate of color running in at least one race, but New York, which also has the most contests overall, is home to 10 of these candidates, including former Rep. Mondaire Jones, who is running in the 17th Congressional District. He tried to switch districts in 2022 due to redistricting and lost the primary in the 10th District, but this year he is running unopposed and hoping to unseat Republican Rep. Mike Lawler.

In Colorado, Democratic incumbent Rep. Joe Neguse is running unopposed in the primary for the state's 2nd Congressional District. In the 3rd District, Stephen Varela, who sits on the state's Board of Education, is the only person of color among six candidates hoping to take on Democrat Adam Frisch for the seat left open by Boebert running in the 4th District this cycle. Asian American Peter Yu, a finance and mortgage consultant, is one of her five challengers in that district. In the 8th Congressional District, are vying to take on the incumbent Democrat, Rep. Yadira Caraveo, a seat Republicans hope to flip in what could be a close race.

Finally, there are currently only four Black Republicans in the House, but Burns could add to that number if he wins his runoff in South Carolina (he is slightly favored against Biggs). Meanwhile, one of those four incumbents, Rep. Burgess Owens, is unopposed in Utah's 4th District.

—Monica Potts, 538