The main arguments against instituting a national mail-in voting system are as follows:
It promotes Voter Fraud. Time and time again the myth of rampant voter fraud has reared its ugly head in the conversation regarding mail-in ballots.
According to the New York Times, “states that use vote-by-mail have encountered essentially zero fraud: Oregon, the pioneer in this area, has sent out more than 100 million mail-in ballots since 2000 and has documented only about a dozen cases of proven fraud.”
And according to the Washington Post, in a recent study in conjunction with the Electronic Registration Information Center, “Officials identified just 372 possible cases of double voting or voting on behalf of deceased people out of about 14.6 million votes cast by mail in the 2016 and 2018 general elections or 0.0025 percent.”
Disproportionately favors Democrats. Trump himself, in an interview with Fox & Friends, has stated in response to Democrat’s proposing voter reform, “you’d never have a Republican elected in this country again.”