I've shared the math so many times, and people are still confused about it.
Out of 100 Black men voters, ~80 vote Dem and ~20 vote GOP. This has been true for the past ~40 years.
If 20 of the Black Dem men say, "I'm never voting for Biden again!" Then:
* turnout drops by ~20%
* GOP share goes to ~25%
It looks like Trump is gaining and becoming more popular! But in reality, Biden is losing.
Switch Biden out for Harris, and you see things float back towards 80%.
4/N