Just as tens of millions of Americans are making plans to vote by mail--came sudden reports of delayed deliveries, vanished equipment, slashed overtime. Much of the country is up in arms about the U.S. Postal Service. The Washington Post reporter Erin Cox fills in details of its slow decline and needed reforms. She tells why the recent appointment of Postmaster General Louis DeJoy, and his sweeping changes, have created a perfect storm. Plus, we look at how, when and where Marylanders can cast their ballots.