ABC News is reporting that Miller is projected to win the GOP primary against her challenger, Evans. She has 64 percent of the vote with a little more than a third of the expected vote reporting.

Miller has stood by Trump and even voted to overturn the 2020 election results, but that didn't stop Evans from calling her a "commie RINO." The primary was more evidence that state Republican Parties have been tearing themselves apart over issues like loyalty to Trump and the 2020 election results, even as there are only small differences between candidates.

—Monica Potts, 538

ABC News reports that Riley Moore, the state treasurer, will win the GOP nomination in West Virginia's 2nd District. He'll be a shoo-in for the general election this fall and will take his seat alongside his aunt, Shelley Moore Capito, who is set to be the state's senior senator at the beginning of next Congress.

—Jacob Rubashkin, Inside Elections

This Olszewski ad might be my favorite of the cycle so far. He’s shamelessly capitalizing off the success of the American League East-leading Baltimore Orioles — nicknamed the O’s — one of the most exciting young teams in baseball.

—Nathaniel Rakich, 538

ABC News reports that Kim Klacik is the Republican's nominee for Maryland's 2nd. Klacik also ran in 2020, when her ad that followed her walking the streets of Baltimore in a red dress and heels went viral. You could write a book about how Republican women campaign for Congress (and people have, FWIW). Klacik's would earn its own chapter, if I was writing it!

—Meredith Conroy, 538 contributor

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.