If President Trump defies today's swing-state polls and pulls off another upset, what will we have missed that could have been a clue?

If President Trump defies today's swing-state polls and pulls off another upset, what will we have missed that could have been a clue? https://t.co/Inp7pzXrDY

— Jim VandeHei (@JimVandeHei) September 15, 2020