In the 12th District Democratic primary, incumbent Lee leads challenger Patel 55 percent to 45 percent after Allegheny County (Pittsburgh) reported a big chunk of early votes just after polls closed. On the one hand, this shows Patel isn't that far behind Lee and could be in the race. On the other hand, Lee actually lost the mail/early vote in the 2022 primary here when she first won this seat, 51 percent to 31 percent, but this time around she leads it. And since about 90 percent of the primary vote will come from Allegheny (the rest from Westmoreland next door), Lee has to be seen as a favorite at this point.

—Geoffrey Skelley, 538

In the 1st District, GOP Rep. Brian Fitzpatrick is well ahead of his challenger from the right, anti-abortion activist Mark Houck. With 20 percent of the expected vote reporting, Fitzpatrick has 83 percent to Houck’s 17 percent. In fact, the Associated Press has already called this race and projected Fitzpatrick to win. ABC News, however, has yet to make a projection, so hang tight!

—Kaleigh Rogers, 538

In Pennsylvania, as in many states around the country, voters name the economy as the most important issue facing the state. In a mid-March Emerson College/The Hill survey, 36 percent of respondents said "the economy (jobs, inflation, taxes)" was the most important issue facing Pennsylvania. The next most chosen issue was crime (12 percent), followed by immigration and "threats to democracy" (11 percent each) and healthcare (9 percent).

Republicans were particularly concerned about the economy and immigration, with 47 and 21 percent selecting those two issues, respectively, and no other issue chosen by more than 9 percent of Republican voters. Democrats also selected the economy first, but with less gusto: 27 percent said the economy is the most important issue, followed by threats to democracy (16 percent), healthcare (15 percent) and crime (13 percent).

—Mary Radcliffe, 538

Today's House primaries in Pennsylvania feature a dearth of Republican women: Of the 19 GOP candidates running today, just two are women. To get a sense of how lopsided this is, as we saw earlier, 12 out of the 25 candidates running for the U.S. House on the Democratic side are women.

Since about the mid-1990s, Democrats have been electing more women to Congress than Republicans, due in large part to more Democratic women running. That said, in both the 2020 and 2022 cycles, more Republican women ran in primaries than ever before. But what's more important to electing more women is where women are running, and if they are competing in places they can win in November.

In Pennsylvania's 5th District, Alfeia Goodwin is the only Republican candidate on the ballot, so in that sense she's set up to succeed in her primary! However, in November she'll face incumbent Rep. Mary Gay Scanlon, who handily won reelection in 2022 and is almost certain to hold the safe blue district. This race illustrates the "sacrificial lamb" phenomenon where a candidate runs unopposed in the primary for a losing seat. There's from political science that Republican women are sacrificial lamb nominees more often than Democratic women.

Things are more interesting in the 7th District race Kaleigh just previewed, where the Democratic incumbent, Rep. Susan Wild, barely eked out a win in 2022 against a female Republican nominee, Lisa Scheller. Scheller isn't running for the GOP nomination this cycle, but another woman, attorney Maria Montero, is on the ballot today against state Rep. Ryan Mackenzie and Kevin Dellicker, a veteran and cybersecurity business owner.

Although this is a seat Republicans are targeting in November, Trump hasn't endorsed anyone in the primary race. But a Trump surrogate, former presidential candidate Vivek Ramaswamy, has been . She hasn't received an endorsement from any of the GOP women's groups we are tracking (VIEW PAC, Maggie's List, E-Pac, and Winning for Women). That said, E-Pac, which was started by Trump acolyte Rep. Elise Stefanik, hasn't made any primary endorsements this cycle, despite its stated mission to elevate women in primaries.

—Meredith Conroy, 538 contributor

We'll be keeping an eye on how candidates of color perform in tonight's House primaries. Racial diversity in Congress has steadily grown over the past two decades, with nonwhite representatives skewing heavily Democratic. In today's races, six candidates of color are running in Democratic primaries compared with four Republican hopefuls.

In the Pittsburgh-area 12th District, Democratic Rep. Summer Lee is seeking a second term after winning a fiercely contested primary by less than 1,000 votes in 2022, when she became the first Black woman to be elected to Congress from Pennsylvania. This year, she faces a primary challenge from Bhavini Patel, an Indian-American small business owner and Edgewood Borough Council member. Patel has aligned herself as a more moderate, pro-Israel foil to Lee, a member of The Squad — a group composed entirely of young progressives of color — who was heavily targeted by AIPAC in her first congressional bid.

Democratic Rep. Dwight Evans, another Black incumbent, is facing a primary challenger in Tracey Gordon, former Philadelphia register of wills. The majority Black, deep-blue 3rd District spans much of central and west Philadelphia, where tonight's winner is all but guaranteed to win the seat in November. The scandal-embroiled Gordon is an underdog candidate here, though she has some experience with that: She defeated a 40-year incumbent in the 2019 primary on the way to becoming the city's register of wills, but lost her reelection bid last May.

A six-way Democratic primary in the 10th District includes Harrisburg City Council member Shamaine Daniels and Blake Lynch, a former local radio executive. Daniels was the Democratic nominee in 2022, but was defeated by Republican Rep. Scott Perry, the former chair of the hard-right House Freedom Caucus. Whoever wins tonight will face Perry in November.

On the Republican side, attorney Maria Montero is one of three Republicans vying to face 7th District Democratic Rep. Susan Wild in what is anticipated to be a highly competitive general election. Entrepreneur Aaron Bashir, former Army chaplain Alfeia Goodwin and business executive James Hayes are each running unopposed in today's Republican primaries in their districts. All three are assured a spot on the ballot in November, but face long odds against Democratic incumbents in solidly blue districts.

—Irena Li, 538