evidence: FACT CHECK: Trump Spreads Unfounded Claims About Voting By Mail President Trump has made it clear that he does not support allowing all registered voters access to mail ballots this fall, even during a pandemic. But he keeps changing his story about why he's opposed. Among his past claims, the president has said ballots would be stolen out of mailboxes, despite very little evidence of such fraud over the past 20 years. Trump has also said universal access to mail-in voting would boost Democrats and prevent Republicans from winning future elections, despite studies and real-life election results contradicting that theory.