Trump is with holding funding to the USPS because he doesn't wan

Wildwood - Trump is with holding funding to the USPS because he doesn't want people to vote by mail .Why is he so afraid of mail-in voters? This is weird because before he was in office he was a mail-in voter. Who would have thought that the USPS was going to be his next victim? People rely on the mail especially the elderly that get their medication by mail.What will be his next tactic to stop people from voting? He just put a new Post Master General in charge .How are handicapped/elderly people going to vote?