Sen. Cory Booker (left), former Vice President Joe Biden and Sen. Kamala Harris stand with 10 of the Democratic candidates for president Wednesday, July 30, 2019, on the second night of the second Democratic presidential debates.

Sen. Cory Booker (left), former Vice President Joe Biden and Sen. Kamala Harris stand with 10 of the Democratic candidates for president Wednesday, July 30, 2019, on the second night of the second Democratic presidential debates.