I think he should release it. I think we should know that answer." - Former president Donald Trump, in an interview with Just the News, March 29

"The FBI knew of the laptop, knew that Hunter received a $3.5 million wire transfer from the former mayor of Moscow's wife." - Sen. Ron Johnson, R-Wis., interview on Fox Sunday Morning Futures, April 3

Less than 50 days before the 2020 presidential election, the Republican staff of the Senate Finance and Homeland Security Committees issued a joint report with a startling claim - that Joe Biden's son Hunter had received a $3.5 million wire transfer from Elena Baturina, a Russian billionaire and the widow of the former mayor of Moscow.

Trump quickly weaponized the factoid, mentioning it 42 times in the final weeks of the campaign. He sharply questioned Biden during the first presidential debate: "They were the ones involved with Russia, turns out not me, it was the opposite. But why did your son get three and a half million from the wife of the mayor of Moscow?"

An attorney for Hunter Biden denied the allegation in 2020 but it has lived on, especially in the right-wing media. Recently Trump called on Putin to reveal what he knows about it.