In addition to Shapiro, the speaking program features Maryland Gov. Wes Moore, Illinois Gov. JB Pritzker, former Transportation Secretary Pete Buttigieg, Kentucky Gov. Andy Beshear, Rep. Ro Khanna of California, and Arizona Sens. Mark Kelly and Ruben Gallego.
Former Vice President Kamala Harris, the last Democratic presidential nominee, is also scheduled to speak. California Gov. Gavin Newsom, another likely contender, won't be in attendance because of a previously scheduled family commitment, his team said, noting that he met with Sharpton earlier in the year.