The summary
Repeated assertion that the 2020 presidential election was stolen, rejected by over 60 courts and all 50 states' certification processes.
The fact-check
All post-election lawsuits alleging broad fraud were dismissed or lost on the merits. Republican and Democratic state officials certified Biden's wins.
Truth on the record
Joe Biden won the 2020 election with 306 electoral votes and more than 7 million more popular votes. No credible evidence of outcome-changing fraud has ever been produced.