Lost by millions won The EC by 80,000.Biden is more popular than Hillary and democrat enthusiasm and turn out is and will be much higher in 2020.Hillary also never had a 17 point lead over Trump in any polls that I recall.
One only need win by one in my book to be the winner.
Biden may popular enough to lose 3 times.
He's not going to run anyway, these teases are just his why of trying to remain relevant, as if he ever was.