Trump didn’t just win Pa. He carried down-ballot Republicans with him, and ushered a red wave.

Republicans on Tuesday rode a Donald Trump-marshaled red wave across Pennsylvania.

After months of pundits signaling the presidential contest could be the closest in years, the former and future president’s win was decisive — on track to be the largest Republican margin of victory in Pennsylvania since Ronald Reagan’s, and the widest by any presidential candidate here in three election cycles.

In Pennsylvania, with about 4% of the vote left to count, Trump received more Republican votes in the state than any candidate ever. He pulled more votes out of Philadelphia and the state than he had in 2020, and he flipped two bellwether counties, Northampton and Monroe, back to Republicans.

In every state that had counted most of its votes, Trump improved on his performance from 2020 and clinched a return to the White House early Wednesday morning. Riding Trump’s coattails, Republicans flipped the U.S. Senate and looked poised to maintain control of the U.S. House.

The former president’s strategy to motivate even more voters here and in other states than he did four years ago clearly worked to lift him over Vice President Kamala Harris — and there are signs it fueled Republicans down ballot.

The state’s high-profile Senate race remained too close to call Wednesday, but Republican Dave McCormick maintained a narrow lead over incumbent Democratic Sen. Bob Casey, who had enjoyed double-digit wins in his prior three runs for Senate. Casey’s potential ouster would be a seismic change in Pennsylvania politics.

Several U.S. House races in Pennsylvania also remained too close to call Wednesday, but they showed leads for Republicans in battleground seats in the Lehigh Valley, Northeast Pennsylvania, and the south-central portion of the state.

In the Lehigh Valley, Republican State Rep. Ryan Mackenzie was leading three-term incumbent Democratic U.S. Rep. Susan Wild by about 5,500 votes with 99% of the vote reported. Wild conceded Wednesday morning.

Republican Rob Bresnahan led U.S. Rep. Matt Cartwright, a Democrat vying for his sixth term, by about 7,400 votes in the district spanning parts of Lackawanna and Luzerne Counties. Cartwright also conceded Wednesday.

And incumbent Republican Rep. Scott Perry, a close Trump ally and the former head of the conservative Freedom Caucus, led in a tight race against a well-funded challenger.

Republican Rep. Brian Fitzpatrick, who represents purple Bucks County, won another term in Congress.

Republicans also swept down-ballot row offices. The state’s incumbent treasurer, Stacy Garrity, and auditor general, Tim DeFoor, were reelected. GOP nominee Dave Sunday was elected the state’s attorney general.

Control of the state House, where Democrats hold a narrow majority, remained in flux Wednesday. Republicans were expected to hold onto control of the state Senate.

And the GOP appeared poised to flip a state Senate seat in Northeast Philadelphia that was held by Democratic State Sen. Jimmy Dillon. With all but one precinct having reported results, Republican challenger Joe Picozzi — a 29-year-old who wasn’t backed by the Republican Party in the city — led by more than 1,000 votes.

There were signs Republicans were making gains in the state, both in rural areas that have long been red and in longtime Democratic strongholds like Philadelphia.

Over the last four years, Republicans cut in half Democrats’ 685,000-resident voter registration advantage in the state. Purple Bucks County flipped from a Democratic advantage to a Republican one. Some Democratic Party leaders have dismissed those registration gains as a lagging indicator of Trump’s already-significant support in the state, but the GOP saw it as a sign Trump was on track to bolster his support in Pennsylvania.

Statewide, Democrats still have a registration edge, with nearly 4 million registered voters compared with Republicans’ 3.7 million.

And despite polls showing the race between Trump and Harris as a dead heat in the final days of the campaign, surveys showed broad dissatisfaction with the status quo among the electorate, and President Joe Biden carried a low job-approval rating.

Sam Chen, a GOP consultant based in the Lehigh Valley, said Harris would have had to overcome strong perceptions that the economy is weak in order to win — and didn’t.

He said the Trump campaign’s advertising in the home stretch featuring Harris saying she wouldn’t diverge from Biden’s agenda “really starts creating this perception of like, she’s on board with inflation.”

Interviews with voters across the state suggest Pennsylvanians were frustrated with the economy, inflation, immigration — and the Democratic Party in general.

“I just have a bad taste in my mouth with regard to Democrats across the board,” said Alan Geist, 68, an engineer who voted for Trump in Schwenksville, Montgomery County.

In Northeast Philadelphia, Bill and Barbara Yarnall said it was an easy choice to vote for Trump, citing their grocery bill.

“We used to spend $75 a week,” Bill Yarnall said. “Now we spend anywhere between $109 and $120 a week.”

And in Levittown, Bucks County, Walt Nicely, 61, said he voted for Trump because of concerns about the economy and the border.

“I liked everything he did before,” said Nicely, who is retired from the tool and die industry.

“These Democrats have been in for how long?” he said, “And they are just not doing it.”

Inquirer staff writers Kristen Graham and Maddie Hanna contributed to this article.