According to our analysis of primaries this cycle through May 21, 41 percent of Democrats' nominees for House, Senate and governor are women, compared with just 16 percent of Republicans' nominees. It wasn't until June 11 that Republicans nominated a nonincumbent woman in a seat they're strongly favored to win in November: Julie Fedorchak in North Dakota's at-large district. But today's races present a couple more opportunities for Republican women to make gains.

One race I'll be watching is the runoff between Biggs and Burns in South Carolina's 3rd. Biggs has been endorsed by VIEW PAC, one of the organizations trying to elect more Republican women, but Trump endorsed Burns. This will be a safe Republican race in November, so a Biggs win would likely add a woman to the Republican conference.

In Utah, incumbent Rep. Celeste Maloy faces a serious challenger, even though she has an endorsement from Trump. Her challenger has been endorsed by Sen. Mike Lee, Sen. Rand Paul, Sen. Tommy Tuberville and former presidential candidate Vivek Ramawamy and is painting Maloy as too "D.C."

In Colorado, there are only two Republican women running today, and they are facing off against each other in the 4th Congressional District. Flora has been endorsed by VIEW PAC, but Boebert has the support of Maggie's List, which is another of the GOP groups dedicated to electing more women. This is the second time we've seen two GOP women's groups endorse against each other in primaries thus far. Last week, in South Carolina's 1st, Rep. Nancy Mace was endorsed by VIEW PAC, while Winning for Women supported her challenger, Catherine Templeton. Mace prevailed*.

While Mace and Boebert both had backing from Trump, Boebert is a member of the Freedom Caucus, while Mace is not, which could explain why VIEW PAC backed Mace but not Boebert. In 2022, VIEW PAC endorsed a challenge to Rep. Marjorie Taylor Greene in her primary, another female member of the Freedom Caucus.

In Democratic primaries today, EMILYs List, the prominent political action committee formed to elect pro-choice Democratic women, has endorsed just two nonincumbents, both in New York: Goroff in the 1st and Laura Gillen in the 4th. Gillen, a lawyer and former Hempstead Town Supervisor, is unopposed in the primary, and she stands a decent chance of defeating incumbent Republican Rep. Anthony D'Esposito in November.

I'll keep you updated on these candidates and more throughout the night.

—Meredith Conroy, 538 contributor

On Long Island, Democrats hope to seriously contest the 1st District, a seat Trump would've won by 2 points in 2020, which is currently held by first-term Republican Rep. Nick LaLota. Former CNN political commentator John Avlon and organic chemist Nancy Goroff are battling for the Democratic nomination. Goroff has outraised Avlon $2.3 million to $1.8 million, but her advantage stems from $1.2 million in self-funding.

Avlon has received many endorsements from party leaders, who seem to view him as the more electable pick. In the same vein, the WelcomePAC has spent nearly $1.7 million on ads that claim Goroff — who lost here as the Democratic nominee in 2020 — is a choice the party "can't afford." But Goroff's campaign has promoted her backing from pro-abortion rights groups EMILYs List and Planned Parenthood while hitting Avlon for his past ties to the GOP, including his work as an aide to Republican Rudy Giuliani during Giuliani's tenure as New York City's mayor.

—Geoffrey Skelley, 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

In Tuesday's marquee race, Democratic Rep. Jamaal Bowman could lose renomination against Westchester County Executive George Latimer in New York's dark blue 16th District. This race is defined by internal Democratic divisions over the Israel-Gaza conflict, the influence of pro-Israel groups and controversies about Bowman's past behavior. Bowman has joined with fellow members of the progressive "Squad" and some other Democrats to criticize and oppose U.S. support for Israel, a position that made him a major target for pro-Israel groups.

Bowman lacks a strong electoral record, having won only 54 percent of the primary vote in his first reelection campaign in 2022. He also attracted scrutiny last September when he pulled a fire alarm in a Capitol Hill office building just before a high-profile vote to avoid a government shutdown, for which he was censured by the House and had to pay a fine. On top of this, old blog posts by Bowman came to light in January that included conspiracy theories about the terrorist attacks on Sept. 11, 2001. All of this has helped boost the primary challenge from Latimer, who's also built up a strong local political reputation in Westchester County — where 9 in 10 of the district's voters live, according to Daily Kos Elections.

Still, the big story is Latimer's support from pro-Israel donors and organizations. Latimer has raised $5.8 million, $2.4 million of which came via individual donors who used the American Israel Public Affairs Committee as a conduit to contribute to his campaign. This has helped give him a financial leg up on Bowman, who has raised $4.3 million. And the monetary disparity grows far starker when we look at outside spending. Groups have spent a whopping $17.7 million either opposing Bowman or supporting Latimer, according to OpenSecrets, while they've spent only $3.0 million attacking Latimer or boosting Bowman. As a result, this has turned into the most expensive House primary on record, according to AdImpact.

The principal group behind the massive spending is United Democracy Project, a super PAC affiliated with AIPAC, which has forked out $14.6 million on the race to take down Bowman. Despite the pro-Israel connection, the group's ads rarely mention the ongoing conflict, instead criticizing Bowman on issues such as not supporting President Joe Biden's position on a major infrastructure package in 2021 and a debt ceiling deal in 2023. Bowman and his allies haven't taken this lying down. In the last primary debate, Bowman attacked the "racist MAGA Republicans" — a reference to AIPAC's bipartisan sources of financial backing — supporting Latimer, a criticism leveled in ads put out by Bowman and outside groups backing him.

The most recent survey of the race — an Emerson College/The Hill/WPIX poll from early June — found Latimer ahead of Bowman 48 percent to 31 percent, which signals just how in danger Bowman is of becoming the first Democratic incumbent to lose renomination in 2024.

—Geoffrey Skelley, 538

It's 10 p.m. Eastern, and the final polls of the night just closed in Utah, where the biggest prize is Romney's open Senate seat. Stick with us for results from the Beehive State.

—Tia Yang, 538