The U.S. Postal Service has survived the telegraph, the fax machine and the dawn of the internet. But will it survive coronavirus? Guests: Nicholas Fandos, who covers Congress for The New York Times and Derek Harpe, a Postal Service worker with a mail route in Mocksville, N.C. For more information on today’s episode, visit nytimes.com/thedaily  Background reading: With the coronavirus threatening the Postal Service’s financial viability, a rescue for the organization has become a political battle.