In the 139th state House District special election tonight, the only special for state legislative seats of the evening, Jeffrey Olsommer is on track to hold the seat for his party after former state Rep. Joe Adams resigned in February due to health concerns. Olsommer currently leads Democrat Roberta Skibber by about 6 percentage points, a margin that will likely grow as more election day votes are counted, according to the state election returns site. However, he does appear on track for an underperformance in this seat that Trump won by 28 points in 2020.

—Mary Radcliffe, 538

The 14th District in southwest Pennsylvania is a solidly Republican seat, but incumbent GOP Rep. Guy Reschenthaler will have an opponent in November. The question is, who? With 96 percent of the expected vote reporting, Navy veteran Chris Dziados leads business owner Ken Bach 54 percent to 46 percent in the Democratic primary. This makes Dziados a pretty clear favorite to win his party's nomination at this point, although the race is unprojected at this time.

—Geoffrey Skelley, 538

All of today's congressional primary contests where nonwhite candidates were running have been projected, according to reporting by ABC News. Incumbent Reps. Dwight Evans and Summer Lee successfully fended off primary challengers, while Shamaine Daniels and Blake Lynch were both defeated by Janelle Stelson in a crowded Democratic primary for Pennsylvania's 10th. On the GOP side of things, only one candidate of color was running in a contested primary race tonight: Maria Montero lost to state Rep. Ryan Mackenzie in the 7th District, which Republicans have been eyeing as a potential flip this November.

—Irena Li, 538

And now we have a projection! ABC News reports state Rep. Ryan Mackenzie is projected to win the Republican primary race in the 7th Congressional District, setting him up to square off against Democratic Rep. Susan Wild in this highly contested district in Lehigh Valley this fall.

—Kaleigh Rogers, 538

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