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

Pennsylvanians will technically pick their nominees today for the state's U.S. Senate election this fall, though the results won't be a nail-biter — both major party candidates are running unopposed in their primaries. Democratic Sen. Bob Casey Jr. is running for a fourth term, while David McCormick, a former hedge fund CEO and diplomat under the Bush administration, is hoping to claim the seat for Republicans.

While today's primary isn't competitive, the general election matchup is already attracting a lot of attention. Democrats currently have just a one-seat majority in the Senate and are defending at least seven competitive seats this cycle, including Casey's in Pennsylvania. That means control of the chamber could come down to the Keystone State, a prospect that both parties are taking seriously.

Both candidates have already dropped millions of dollars on the race. While McCormick slightly outraised his opponent last quarter, Casey has spent over two and a half times as much money this cycle and has close to twice as much cash on hand as McCormick.

Casey also leads in every poll we've collected of the race, although some of those leads are within the margin of error. All the major election handicappers agree that he appears to have an edge in the race for now, though it's still competitive enough that things could easily change by November. Tonight won't be able to tell us much about the future, but it marks the official start to one of the most closely watched matchups this cycle.

—Cooper Burton, 538