evidence: Trump is setting the stage to do the same in 2024. On Sept. 8, 2024, he posted to Truth Social declaring that a Tucker Carlson interview revealed that "20% of the Mail-in Ballots in Pennsylvania are fraudulent." He called for the U.S. attorney general, the FBI and Pennsylvania Republicans to do something about it. [...] Democrats got no-excuse, mail-in voting, meaning anyone can request to vote by mail. Mail-in voting has been used far more by Democratic than Republican voters in Pennsylvania, though this has been driven in part by misinformation surrounding the security of mail voting. [...] Pennsylvania has redesigned its mail-in ballot, which has resulted in fewer rejected ballots. Still, the Trump campaign is already working to exploit technicalities to reject mail-in ballots in the crucial swing state.