And keep in mind Biden is already very close to or above 50% in many potential tipping-point states, meaning that Trump needs to win nearly all of the undecideds.

Minnesota 50.8
Wisconsin 50.7
Michigan 49.9
Pennsylvania 49.7
Nevada 48.8
Arizona 48.5
Ohio 47.9
North Carolina 47.5

— Nate Silver (@NateSilver538) September 27, 2020