Former President Donald Trump, who endorsed Justice in October, celebrated the governor's victory on his social media account shortly after the race was called in West Virginia. "Congratulations to Big Jim Justice!" Trump wrote on Truth Social.

Justice, in his own post (on X), nodding to the former president's "America-First" agenda. "Thank you, West Virginia, for placing your support and trust in me. I am truly humbled and will work every day to win in November so we can flip the Senate and deliver on our America-First agenda!" Justice wrote.

The two have a short but storied history. Justice switched his party registration from Democratic to Republican in 2017, announcing the high-profile shift at a Trump rally in Huntington, West Virginia.

—Isabella Murray, ABC News

In Baltimore, Democratic voters are choosing between a current and former mayor, and the race looks very close. Former mayor Sheila Dixon is currently leading incumbent Brandon Scott by less than a tenth of a percentage point with mostly early vote reported, according to the state's board of elections.

This is Dixon's third attempt to return to the mayor's office since she resigned in 2010 after being found guilty of embezzlement. In 2016, she narrowly lost the primary to Catherine Pugh, who later went on to plead guilty to conspiracy and tax evasion. Then in 2020, Dixon lost the primary to Scott by just 2.1 percentage points, though a crowded field of 24 candidates meant neither put up a strong showing.

Perhaps ironically, Dixon's campaign this time around focused in part on crime, an issue that 79 percent of Baltimore voters cited as "extremely serious" or "very serious" in a March Washington Post/University of Maryland poll, far more than other areas of the state. Thirty-two percent of Baltimore City voters also told the pollsters that they feel "not too safe" or "not at all safe" from crime in their neighborhoods.

Two different surveys of the mayoral primary in April both showed a single-digit race with Scott ahead, so this one might go down to the wire.

—Mary Radcliffe, 538

As results start to stream in across the state, the map for the Democratic primary for Maryland Senate looks great for Trone. Unfortunately for him, the vote totals are showing a much closer race, with Alsobrooks currently ahead by around 3 points, thanks to a strong showing in Baltimore and a significant lead in her home county, Prince George’s County. As more votes are reported, we’ll be keeping an eye on whether Alsobrooks can maintain her small lead, and if it starts to be reflected geographically.

—Amina Brown, 538

Another primary challenge to a sitting Republican representative has fallen short. ABC News reports that Bacon is projected to win the Republican primary in Nebraska’s 2nd District. With 37 percent of the expected vote in, he is defeating Frei, his right-wing challenger, 70 percent to 30 percent.

—Nathaniel Rakich, 538

Since about the mid-1990s, Democrats have been electing more women to Congress than Republicans, and the gap gets bigger each cycle. A number of factors explain this disparity between the parties, but one is that the GOP continues to invest less in recruiting and financially supporting its female primary candidates.

There was some speculation that this might be changing. After the 2018 midterm elections, a handful of GOP groups aiming to elect more women cropped up after just four of the 42 new women who joined Congress were Republicans. That imbalance was a wake-up call for New York Rep. Elise Stefanik, who had reportedly recruited more than 100 women to run for Congress that year, but just one of them prevailed in November; most failed to emerge from their primaries. After the 2018 cycle, Stefanik started Elevate PAC as the Republican counterpart to EMILY's List. Stefanik announced she wanted to "play big in primaries," even though Republican leadership said it was "a mistake." Perhaps as a result, in the 2020 cycle, more Republican women ran in and won primaries than ever before.

But this cycle, Elevate PAC hasn't posted any endorsements to its website; Open Secrets shows that it has made contributions to primary candidates — but that list includes men, too, evidence that Stefanik may have other priorities this time around.

But Elevate PAC isn't the only GOP women's group that seems to be pulling back. We've also been tracking endorsements from Winning for Women, Maggie's List and VIEW PAC. Through today's primaries, Winning for Women and Maggie's List have endorsed just two non-incumbents (Wendy Davis, who lost her primary last week in Indiana, and Laurie Buckhout, who won her March primary in North Carolina). VIEW PAC is outpacing these other groups in endorsements, but it has still endorsed only five non-incumbents (two of whom have won their primaries thus far).

Today, there is one Republican woman running in an incumbent-less primary with support from VIEW PAC: Mariela Roca, an Air Force veteran, is running in Maryland's 6th District. However, she faces an uphill battle against two former state delegates, Dan Cox and Neil Parrott.

The primaries aren't over, so we don't yet know if the GOP is slipping when it comes to nominating women. But preliminary evidence from the Center for American Women in Politics suggests a decline. The number of female Republican House candidates is down by 38 percent from 2022 to 2024 in states where filing deadlines have passed.

—Meredith Conroy, 538 contributor

CORRECTION (May 15, 2024, 3:15 p.m.): A previous version of this post stated that Winning for Women and Maggie's List have only endorsed one non-incumbent through today's primaries. The post has been updated to include Laurie Buckhout of North Carolina's 1st Congressional District, whom both organizations have also endorsed.