Rudolph W. Giuliani, who has helped oversee a string of failed court challenges to President Trump’s defeat in the election, asked the president’s campaign to pay him $20,000 a day for his legal work, multiple people briefed on the matter said…

A $20,000-a-day rate would have made Mr. Giuliani, the former New York City mayor who has been Mr. Trump’s personal lawyer for several years, among the most highly compensated attorneys anywhere.

Reached by phone, Mr. Giuliani strenuously denied requesting that much.

“I never asked for $20,000,” said Mr. Giuliani, saying the president volunteered to make sure he was paid after the cases concluded. “The arrangement is, we’ll work it out at the end.”