Just minutes after former President Donald Trump's brief appearance at a McDonald'swhere he served french fries to drive-thru customers in Feasterville, Pennsylvania, the Republican candidate began sniping at his election opponent, Vice President Kamala Harris.

“I have now worked 15 minutes longer than Kamala. She never worked here,” Trump said to a crowd of reporters through the drive-thru window, pulling a McDonald’s apron over his shirt and tie.

Trump regularly makes the unproven claim that Harris is lying about working at McDonald's in her 20s. Harris has denied the accusation.

Trump's abbreviated fast food shift took place in Bucks County and included several tutorials from employees on how to operate the fryer and operate the drive-thru. He then distributed orders to a few customers, all of whom were his supporters.

“I wouldn’t mind this job,” Trump said. “I think I might come back and do it again.”

Trump answered questions from several reporters at the drive-thru window.

“Strange place for a press conference,” he said.

Asked how much he was being paid, Trump joked: “Not enough. I want more. I want more money.”

The Harris campaign mocked Trump's campaign stunt.

“This guy has spent decades tightening workers' wages, cutting overtime pay for millions of people and resisting efforts to raise the minimum wage,” Harris' running mate, Minnesota Gov. Tim Walz, wrote Sunday in a social media post.

“Do you know who actually worked at McDonald's, joined workers on the picket line, and fought for working people? @KamalaHarris,” Walz added.

Both campaigns are courting the job vote with promises like eliminating the tip tax. Harris has secured the support of several unions across the country, including the United Auto Workers and the American Federation of Labor, as well as the Congress of Industrial Organizations.

With just 16 days until the Nov. 5 election, Trump's McDonald's appearance was part of a broader Sunday event in Pennsylvania to capture the attention of voters in the battleground state.

Top Trump supporter Elon Musk held a rally in Allegheny County. And Trump was scheduled to hold his own rally later Sunday in Lancaster before attending the Pittsburgh Steelers' football game against the New York Jets on Sunday night.