When one political party (Democrats) refuse to accept the results of an election, you have the first step toward another Civil War!
Also, the Dems are pushing for a "universal background checks" for ALL gun sales. This is the first step of gun registration for all. And we all know what happens after that - gun confiscation and mass murder of political dissidents. Go back and read your history. (if you can find a book that has not been revised to comply with modern PC crap) We already have examples of violence from the left and violent rhetoric from their leaders to egg it on.