The United States is preparing to hold its first ever socially distant presidential election. But will it actually work? Guest: Reid J. Epstein, who covers campaigns and elections for The New York Times. For more information on today’s episode, visit nytimes.com/thedaily  Background reading: President Trump’s suggestion that the Nov. 3 vote could be delayed — something he cannot do on his own — drew unusually firm Republican resistance and signaled worry about his re-election bid.Georgia’s troubled primary elections in June may be a preview of graver battles coming in the general election.