Though Trump has already clinched the 2024 Republican presidential nomination, many states have yet to vote in their party primary. Political observers have been closely watching Trump's margins in these states for any potential signs of weakness with his base ahead of the general election. While many who vote against Trump in the primary probably weren't going to vote for him in the general election anyway, former U.N. Ambassador Nikki Haley, who dropped out of the presidential race in March, has routinely been garnering between 15 and 20 percent of the vote in primaries since then, a potential sign of dissatisfaction with Trump among some Republicans.

Whether or not you think that means trouble for Trump in November, he's not having that problem in Kentucky tonight: With 72 percent of the expected vote in, the former president is currently winning 85 percent of the vote, while Haley is at just 6 percent.

—Cooper Burton, 538

Two of the four anti-abortion Republican candidates we've been tracking in Kentucky are projected to win their races, according to The Associated Press. Incumbents Guthrie and Massie prevailed against their challengers, while Edwards lost to incumbent Rogers.

In Georgia, Yu, McCormick, Scott, Clyde, Collins, and Greene were uncontested in their respective districts. In the 11th District Republican primary, Loudermilk is projected to defeat his challenger. With just over half the expected vote reporting, he has 88 percent of the vote.

—Monica Potts, 538

Looking a little further down the ballot in the Peach State, Democrats are hoping they can reclaim the state legislative 56th District in Atlanta. Technically, Democrats won this seat in the last election, but state Rep. Mesha Mainor switched parties last year, after Democrats criticized her conservative stance on issues like school vouchers and policing.

Mainor is running unopposed in the GOP primary tonight, but four candidates are vying for the Democratic nomination, including 23-year-old public school math teacher Bryce Berry, who is currently leading with 55 percent, with half of the expected votes in. Berry has accumulated a decent war chest for a state House race, and has the endorsement of some high profile state Democrats, including House Democratic chairman Bill Mitchell and several local state Reps and state Senators, so it's not a total surprise to see him in the lead. If he wins the nomination tonight, he'll square off against Mainor in the fall to see if the Democrats can prevail despite no longer having the incumbent candidate.

—Kaleigh Rogers, 538

It’s only 8 p.m. Eastern, and yet 40 percent of the statewide vote is reporting in Georgia and we have a pretty good feel for where these races are headed. That could be a good sign for November, when Georgia will obviously be one of the most closely watched states in the nation. A clear winner here early-ish on election night would do a lot to avoid a repeat of 2020, when a winner wasn’t projected until the Saturday after the election. (And yes, I’m still traumatized from that.)

—Nathaniel Rakich, 538

According to the Center for American Women and Politics, in primaries that have been decided through May 8, 41 percent of Democrats' U.S. House nominees thus far are women, compared to just 14 percent of Republicans'. In short, Democrats are nominating many more women in this cycle than Republicans, thus far.

We are watching several Democratic women today who are looking to add to those numbers, including a couple of primaries in Oregon where multiple female candidates are facing off in races that have drawn contentious outside spending.

In Oregon's 5th District, two women — state Rep. Janelle Bynum and attorney Jamie McLeod-Skinner — are running to face the one-term incumbent, Lori Chavez-DeRemer, in the general. Chavez-DeRemer, one of just 34 Republican women in the House, won election in 2022 by defeating McLeod-Skinner by just 2 percentage points. In 2022, with support from progressive groups like Our Revolution and Indivisible, McLeod-Skinner successfully mounted a progressive challenge to defeat a seven-term incumbent (Kurt Schrader) before losing to Chavez-DeRemer. In today's primary, McLeod-Skinner doesn't have endorsements from Our Revolution or Indivisible, but she is endorsed by many local groups, and a few sitting members of Congress, while Bynum is endorsed by EMILYs List, plus Democratic Gov. Tina Kotek. No matter who wins, November's general election will be a rematch. Bynum defeated Chavez-DeRemer in state house races in 2016 and 2018. This district will play a crucial role in the Republicans' attempts to maintain their slim majority in the U.S. House.

In Oregon's deep-blue 3rd District, several women are competing for the nomination to replace longtime Rep. Earl Blumenauer, who is not seeking reelection. In this crowded primary, two progressive women look to be the leading candidates — state Rep. Maxine Dexter and former Multnomah County Commissioner Susheela Jayapal. Jayapal's sister is Rep. Pramila Jayapal, the Democratic congresswoman from Washington, and member of The Squad. EMILYs List has not endorsed in this race.

Elsewhere in the state, EMILYs List has endorsed two Oregon incumbents — Rep. Val Hoyle in the 4th District and Rep. Andrea Salinas in the 6th. In 2022, Hoyle won her general election by about 7 points, and Salinas won hers by less than 3 points. Both are seen as targets for Republicans aiming to pick up seats this fall.

In Georgia's safely blue 6th District, recently redrawn due to redistricting, the Democrats' entire field is women: Rep. Lucy McBath (who currently represents the 7th District), state Rep. Mandisha Thomas and Cobb County Commissioner Jerica Richardson. And in the 13th, Rep. David Scott, who is 78 and also just saw his district redrawn, faces a host of challengers, two of whom are women — Uloma Kama, a physician, and Karen Rene, an attorney.

Finally, in Idaho's 1st District, Kaylee Peterson is running unopposed to face Rep. Russ Fulcher in this deep-red district in November, as she did in 2022. And in Kentucky, Erin Marshall is running unopposed in the 1st District, which is also a safely red seat and therefore an unlikely pickup for Democrats. I've written before that Republicans are more likely to nominate women as sacrificial lambs (which is a candidate who runs unopposed in a primary for a losing November seat to give members of their party a choice in the race), but Democrats do it, too! A Democratic woman (Shauna Rudd) is also running in Kentucky's 6th District against four men. This is also a safely red seat.

—Meredith Conroy, 538 contributor