Gov. Josh Shapiro was uncontested in Tuesday's primary. He's seeking a second term in the fall and puts his clout on the line in the battleground state ahead of a potential 2028 bid for the White House.
The 52-year-old has made his opposition to Trump's agenda a central focus of his reelection campaign.
Shapiro is on track to break his own fundraising record. He's working to flip important Republican-held U.S. House seats and deliver the first Democratic-controlled state Legislature in more than three decades.
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Republican state Treasurer Stacy Garrity ran uncontested for the GOP's nomination.
Shapiro urges Democrats on in contests for control of the state Legislature
The Pennsylvania governor urged the crowd at his primary election rally to help the party's candidates win control of the state Legislature for the first time in more than three decades.
Shapiro, put his clout on the line in congressional and legislative races, said he will advance a stronger agenda with Democratic control in Harrisburg.
LIVE RESULTS: Pennsylvania midterm congressional primaries
"Give me a Democratic majority in the Senate and we will fully fund mass transit, we will build more housing, and we will codify abortion rights into state law," Shapiro said.
Shapiro says the only way to hold Trump accountable is to flip the US House
The Democrat considered a potential White House contender in 2028 spent a considerable amount of his primary night speech attacking the president.
The Republican Congress is weak and only serves the will of Trump, Shapiro said. That includes giving Trump a free pass on wrongdoing and corruption, Shapiro said.
"The only way we can expect to change this is to win in November and bring some accountability back to our nation's capital," Shapiro said.
Shapiro-endorsed candidates go 3-for-3 in contested congressional primaries
The wins in the Pennsylvania votes come as Democrats assemble their slate for a fall contest in which they'll try to capture a U.S. House majority.
Those three swing districts are held by Republican U.S. Reps. Scott Perry, Brian Fitzpatrick and Ryan Mackenzie.