Trump claims without evidence that mail voting leads to cheating: A guide to facts on absentee ballots

“It’s quite possible that President Trump could be ahead in the count on election night, but as millions of additional ballots are counted over the next few days the lead could shift to Biden,” UC Irvine law professor Richard Hasen told CNN last month. “And Trump, who has been making unsubstantiated claims of voter fraud for years, has now started shifting to making these claims about mail-in balloting, and he could certainly claim that there’s something wrong about how the vote count was done.”