Joe Biden urged to pick black woman as running mate, as Nancy Pelosi announces endorsement

House Speaker Nancy Pelosi officially backed Joe Biden for president Monday. And more than 200 black women penned an open letter calling for Biden to choose a black woman for vice president. CBS News campaign reporters Tim Perry and LaCrai Mitchell joined CBSN to explain why those leaders say it's time to have black women in leadership positions and how it will change the Democratic Party.