With nearly half of the vote reporting in Colorado's 3rd and 8th Congressional Districts, mainline Republican candidates Jeff Hurd and Gabe Evans have pulled ahead of the competition. Evans is endorsed by both Trump and the conservative activist organization Americans for Prosperity, funded by the influential Republican Koch brothers, so no surprises here really. Hurd's race was closer though. Going into the night he had a clear fundraising advantage and the support of several "normie" Republican organizations — like the national cattleman's association and the association of automobile dealers. A victory for Hurd (which looks likely, but there's quite a few rural votes left to be counted) would be a defeat for the other MAGA-aligned candidates in the race — such as Ron Hanks, who has previously called himself a "pro-Trump warrior".

—G. Elliott Morris, 538

In perhaps the highest-profile race of the evening, Latimer leads Bowman 56 percent to 44 percent in the Democratic primary for New York's 16th District, with a little more than a quarter of the overall expected vote reporting, per the AP. Bowman is running up huge numbers in the small part of the district that's in the Bronx — he leads 84 percent to 16 percent there — but about nine-tenths of the district's population lives in Westchester County, where Latimer currently leads 69 percent to 31 percent.

—Geoffrey Skelley, 538

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

After coming within 600 votes of losing her seat in the 2022 midterm election and enduring an awful year in her personal life, Colorado Rep. Lauren Boebert has ditched her district to attempt to win over Republican voters on the other side of the state, in the 4th District. This seat, which was previously held by Republican Rep. Ken Buck — who resigned earlier this year after announcing his retirement last year — is more reliably red, having gone for Trump by a margin of 19 percentage points in 2020 (compared to an 8-point margin in the 3rd). So if Boebert can secure the GOP nomination, she'll all but guarantee herself a spot in the next Congress.

Standing in her way are some primary candidates with more local cachet, such as former state Sen. Jerry Sonnenberg and Deborah Flora, a former Miss Colorado and local talk radio host. However, Boebert has a major fundraising advantage (she's raised $3.7 million, compared to the next-highest raiser, Flora, who's raised less than half a million), as well as Trump's endorsement, and the sole poll we have for this race shows her up 35 percentage points. So she's definitely got a solid shot at the primary in her new district.

In addition to the race to fill this seat in the 119th Congress, there is a separate special election to see out Buck's term. Republicans are favored to win that race.

—Kaleigh Rogers, 538