Some Democrats have been pushing for voters to choose uncommitted on ballots where it appears, primarily to protest Biden's stance on the conflict in Gaza. However, as of now, it doesn't look like there's much difference between voters choosing uncommitted now versus in Obama's 2012 reelection campaign.

In Massachusetts so far tonight, 10 percent of voters have selected "no preference". That's the same as the percentage of Massachusetts Democratic primary voters that voted no preference in 2012. In North Carolina, Biden is the only name on the ballot, and 11 percent have chosen no preference. But in 2012, when Obama was the only name on the ballot in the state, there were 21 percent that voted no preference.

Other states have even lower uncommitted vote numbers. In Colorado, uncommitted has 7 percent of the vote, and it has 5 percent in Alabama and just 3 percent in Tennessee.

—Mary Radcliffe, 538

North Carolina now has more than 25 counties reporting most of their vote, so let the analyses begin! As in other primaries this cycle, the percentage of residents with a college degree is a strong predictor of which North Carolina counties are more likely to be supportive of Haley over Trump. That won't surprise folks who have joined us for prior live-blogs this election cycle. In Jones County in the eastern part of the state, a relatively low 16 percent of residents over 25 have completed a four-year degree (compared to an average of 24 percent across all counties in the state), and Trump has amassed a whopping 90 percent of the vote so far. It also looks like Trump does better in counties that are less densely populated, but we'll need to see more results to be sure.

—Dan Hopkins, 538 contributor

I mentioned this earlier, but I'm tracking candidates endorsed by the anti-abortion Susan B. Anthony List. So far, the group can claim two likely victories: North Carolina House Speaker Tim Moore in North Carolina's 14th District and Rep. Mayra Flores in Texas's 34th District. Buckhout is leading in her race for the 1st District in North Carolina. The only Susan B. Anthony List endorsee we're tracking tonight who is trailing is state Rep. Grey Mills, who's in second place behind Rep. Pat Harrington. Harrington dropped a bid for the 14th District, where he would have faced Moore, to switch to the 10th. The 10th District's incumbent, Patrick McHenry, is not seeking reelection.

—Monica Potts, 538

In Texas's 32nd District, where ten Democrats were running in today's open primary, state Rep. Julie Johnson is leading with 33 percent of the vote reporting. Johnson has backing from EMILY's List, which was a good sign. According to our analysis of the 2022 primaries, 85 percent of candidates in open primaries endorsed by EMILY's List's won their races.

—Meredith Conroy, 538 contributor

As I mentioned earlier, 2018 was a watershed year for political ambition among Democratic women. Not only did Democratic women run in record numbers in 2018, they also outperformed Democratic men in their primaries. And in November of that cycle, female candidates were responsible for more than 60 percent of the congressional seats that flipped from red to blue. That year was a nail in the "women aren't electable" coffin.

There are a few Democratic women running tonight who are vying to do just that once again.

In southern California's 40th District, which spans parts of Orange, Riverside and San Bernardino counties, engineer Allyson Muñiz Damikolas is hoping to face Republican incumbent Young Kim in November. Kim herself was one of the few Republican women who won in 2020 when she flipped California's 39th District by less than 5,000 votes Due to redistricting, Kim ran in the 40th District in 2022, where she won by a much larger margin. Still, this region of California is in flux demographically and politically, so it makes sense as a target for Democrats. EMILY's List is backing Muñiz Damikolas, but to advance to November, she'll need to get past fellow Democrat, retired fire Capt. Joe Kerr, first, who has been endorsed by the Congressional Progressive Caucus PAC.

Next, in Texas's 15th District, small business owner Michelle Vallejo is favored to advance tonight to a rematch against Republican incumbent Rep. Monica De La Cruz. Vallejo, who has endorsements from EMILY's List and the DCCC, lost by nearly nine percentage points in 2022, but Democratic groups have invested more in the race this time around as a top pickup opportunity. And in California's 3rd District, wildfire specialist Jessica Morse is running to face the Republican incumbent, Rep. Kevin Kiley. Morse is endorsed by EMILY's List, but not the DCCC. She and Kiley are likely to advance out of today's top-two primary, which includes a third-party candidate.

In addition to these, there are several bluer districts with incumbent-less primaries today where Democratic women will be competitive:

- Rep. Colin Allred is running for Senate, opening his seat in Texas's 32nd District. State Rep. Julie Johnson has support from EMILY's List and seems to be one of the top two candidates in a crowded Democratic primary.

- Rep. Tony Cárdenas announced his retirement in his blue San Fernando Valley district (California's 29th). Luz Maria Rivas, who has support from EMILY's List and the Congressional Progressive Caucus PAC, should finish in the top two today.

- Rep. Barbara Lee isn't running for reelection in California's 12th District, instead vying for the Senate. Organizer and civil rights activist Lateefah Simon is a clear front-runner. She has Lee's endorsement, as well as Gov. Newsom's, and backing from EMILY's List.

- Rep. Anna Eshoo announced her retirement after three decades in Congress, opening up California's 16th District. EMILY's List is backing former Stanford dean Julie Lythcott-Haims, but she's caught in a tight race with four other strong candidates who have her beat on the spending front.

- Rep. Katie Porter is also running for Senate instead of reelection in California's 47th District. Lawyer Joanna Weiss, who has an endorsement from EMILY's List, looks to be in a contentious race with state Sen. Dave Min to become the Democratic flagbearer this fall.

Given that Lee, Eshoo and Porter are women and not all of today's female candidates are favored to advance, today's races mainly give Democratic women a chance to maintain the progress they've made in recent cycles.

—Meredith Conroy, 538 contributor