Kamala Harris unbeatable for Democratic nomination if Biden drops out  AxiosWhat Kamala Harris’s World Is Thinking About Biden Quitting  New York MagazineReporters press White House press secretary about Biden’s candidacy and health  CNNDemocrats begin to consider Harris at the top of their ticket  The Washington PostWho could replace Biden if he drops out? Harris does better against Trump in polls – 6abc Philadelphia  WPVI-TV