FILE PHOTO: Senator Warren speaks at the first U.S. 2020

FILE PHOTO: U.S. Senator Elizabeth Warren speaks as former HUD Secretary Julian Castro, U.S. Senator Cory Booker, former U.S. Rep. Beto O’Rourke and Senator Amy Klobuchar listen during the first U.S. 2020 presidential election Democratic candidates debate in Miami, Florida, U.S., June 26, 2019. REUTERS/Mike Segar/File Photo