Democratic presidential candidate Sen. Elizabeth Warren, D-Mass., center, answers a question, during the Democratic primary debate hosted by NBC News at the Adrienne Arsht Center for the Performing Art, Wednesday, June 26, 2019, in Miami. Listening from left are, former Housing and Urban Development Secretary Julian Castro, Sen. Cory Booker, D-N.J., former Texas Rep. Beto O’Rourke, and Sen. Amy Klobuchar, D-Minn. (AP Photo/Wilfredo Lee)