Dahlia Lithwick and Mark Joseph Stern: This is an existential challenge to mail-in voting, and it has arrived just as we have the midterm elections coming up.
Thune is out of step with Trump on mail voting: "We do have states, in fact a majority of states and a lot of red states, who have mail-in ballot option, so we want to ensure we enable them to continue for legitimate reasons to have mail-in ballots."
