Trump Slams Mail-In Voting With the ongoing coronavirus pandemic affecting nearly every aspect of life, several states are making adjustments to their primary election procedures. Many states have already postponed their elections to later dates, or have called for mail-in voting. President Donald Trump criticized the idea of voting by mail on Twitter, saying Republicans lose out in the process. President Donald Trump via Twitter Easier access to voting by mail could affect Trump’s bid for reelection this year, especially in swing states where margins could be very thin.