With almost everyone expecting a "change of batter" to replace Biden at the last minute, my brain keeps asking, "What do they gain by doing it?" The whole world will see it as a cheap trick as they see Biden crumbling and they lose a mountain of Dem support. Keep him in will, at least, garner some of the Dem loyality vote. However, the democrat organization is like a wounded animal and there is no way to predict how they will react.