de Blasio is definitely under hyped for 2020.
I love him, but the last person the Democrats need right now is the mayor of New York, whoever that is.
Similarly, I think the biggest problem with Harris at this point is the optics of her having been a San Francisco local politician. Most of the other negatives about her can be cancelled out--'muh soft on crime' with the fact that she was a DA, her less-than-
Ozzie and Harriet personal life with Trump's vastly worse one, et cetera--but not that one, unfair as that is.