With Joe Biden lead­ing in many pub­lic polls, and Democ­rats kick­ing off their nation­al con­ven­tion on Mon­day, Pres­i­dent Trump has height­ened his attacks on mail-in vot­ing. Pres­sure con­tin­ues to grow for the post­mas­ter gen­er­al, Louis DeJoy, a Repub­li­can megadonor and ally of the pres­i­dent, to resign.