The black community is far more likely to vote for a black man from Newark New Jersey than they are to vote for a San Francisco liberal woman who questioned the CIA director about gay rights.
If Booker runs then he will pretty much destroy any chance Harris has of being the nominee.
IIRC African-American democratic primary voters have virtually just the same views on LGBT rights; and Booker arguably has a lot more holes in his record (his support for Bain, his support for Charter Schools, etc)
I think that Booker either won't run in 2020, or will flame out in the single digits.
Don't underestimate Cory.
