It doesnt take many. If he got over 10% of black voters, basically a 3% gain from 2016, that becomes a landslide pretty quick. most blacks agree with ending immigration because they know that mexicans are displacing them on the bottom of the food chain. also most mexicans really dont want additional pressure on their wages from immigrants. most of them are too stupid to disregard the Trump hate but all it takes is a few woke niggers