Left-wing double standards are oodles of fun. The same behavior that used to be praiseworthy becomes a monstrously unacceptable act when the shoe is on the other foot. The media is boiling because Trump refused to rule out challenging the election results. Not too long ago the left was whining that Gore didn't fight hard enough against the election results.
But that was under Bush. It's completely different.
So when Gore withdrew his concession, it wasn't a threat to democracy. When Trump refuses to foreclose his options, it is. One gets the impression that by threat to democracy, the outraged media really means a threat to the Democratic Party.