His supporters on Monday sounded bewildered by the reaction to the video, blaming it alternately on nervous Republicans and a hostile press.
"Nobody has the guts to take the gloves off on the Clintons until Trump, and they jump ship over a tape?" Jim Dodson, who wore a "Hillary for Prison" button, said of the GOP dissenters.
Some said they were offended by the footage of Trump, some said they weren't, but all of them dismissed it as a minor distraction compared to the issues that they say drew them to his campaign: closing borders, blocking refugees, protecting gun rights, and retaking control of the Supreme Court.
Above all, they were terrified of a Clinton presidency. Thousands of Trump supporters led fist-pumping chants of "Lock her up!" more than four hours before his scheduled rally began.
"Lock her up is right," Trump said when he took the stage.
Crowds screamed and chanted obscenities at the press pen with Trump's encouragement. He paused repeatedly to allow thousands of fans to turn around and directly confront reporters for long periods.
"That's why we have to win this election," he said. "We have to take it away from these dishonest characters."
Trump alternated between assuring the room all was well in the campaign while directing their unbridled fury at anyone undermining his campaign, from the media to surveys.
"Even the polls are crooked," he said. "Look, we're in a rigged system folks."
Trump decided, for now, to keep Republicans off his list of targets for the crowd — from the stage at least.
Earlier Monday, House Speaker Paul Ryan told Republican House members to "do what's best for you in your district" and said he would no longer defend the nominee. Trump shot back on Twitter that Ryan "should spend more time on balancing the budget, jobs and illegal immigration and not waste his time on fighting Republican nominee."
His voters were ready to join him in the fray.
"People will not be happy with Paul Ryan," Carol Stofflet of Pen Argyl, Pennsylvania, said. "They'll remember it when he wants to run again for any public office."
Stofflet, like Trump and many rally-goers, dismissed the recent tape of Trump as unimportant. But she saw it had an impact: One of her friends who was undecided ruled out Trump.
"She doesn't want Hillary, but with the video she doesn't want to support him," she said. "I told her actions speak louder than words."
Others said they couldn't believe surveys showing Trump losing Pennsylvania by wide margins, saying they had seen only Trump signs around their small towns.
"They say she's up 11 in Pennsylvania," one woman said. "How? Is every person in Philadelphia for her?
"The only Hillary sign I've ever seen is Hillary for Prison," Susan Tolendini said.
Tolendini drove all the way from Staten Island, where Trump racked up one of his highest margins in the primaries, to cheer him on through a tough week. By her count, she has 92 friends who "like" Trump on Facebook versus only 4 who "like" Clinton. Across the river from her is Manhattan, one of the most Democratic areas in the country and the only county Trump lost in his home state's primary.