Joe Biden has done it.

Biden won the nomination.. after losing the first three primaries. He did it basically being broke going into Super Tuesday. He did it with some terrible debate performances. He did it after getting laughed off this platform by many.

Biden also does it with a ~6 pt lead over Trump in national polls... and with 3+ pt leads in polls in AZ, FL, PA and WI... Some of the strongest numbers for any challenger since Truman in 48...