In a telephone interview, the president slammed the Democratic vice presidential nominee using a term he has previously reserved for terrorists, murders and major natural disasters.
Gen. Chuck Boyd, a former POW, says he supports Joe Biden in part because of a report that President Trump called members of the military who died in war "suckers."
Organizers said Thursday the next presidential debate would be virtual, but President Trump said he wouldn't participate. Meanwhile, Joe Biden and Kamala Harris are campaigning in Arizona.
For health and safety reasons, debate organizers shifted next week's scheduled town hall to a virtual event. The president called the format "a waste of time."
The contest between Republican Sen. Susan Collins and her Democratic challenger, Maine House Speaker Sara Gideon, could determine control of the U.S. Senate.