Joe Biden has a huge advantage in the presidential race, no matter how you look at it. He’s leading President Trump by seven points in national polls; he’s making inroads in red states like Texas and Georgia; and poll averages put him ahead in swing states like Pennsylvania, Florida, Michigan and Wisconsin. The trajectory of this race feels obvious — voters are done with Trump.
But it’s more complicated than that. One simple concept — reversion to the mean — can explain why. CONT.
David Byler, Washington Post