Trump is leaching away the Democrat base.
With all due respect to rivals, they haven’t been so successful. The boastful Trump has put a lot of his boasting into what “we the people” can do. Rivals are like, look at my immaculate recipe.
The rats and MSM are terrified. They know that even a three or four point swing in the black vote (Romney got 6%) would be devastating. They need 90+ percent in the urban areas of the swing state, Miami, Cleveland, Philly. Without it they can’t win.