FILE PHOTO: The line up of U.S. Democratic presidential candidates who will participate in the party’s first of two nights of debate in Miami on June 26, 2019, in a combination file photos (L-R top row): U.S. Senators Cory Booker, Elizabeth Warren, Amy Klobuchar, Former U.S. Representative Beto O’Rourke, and New York City Mayor Bill de Blasio. (L-R bottom row): Former U.S. Representative John Delaney, U.S. Representatives Tim Ryan, Tulsi Gabbard, former HUD Secretary Julian Castro, and Gov. Jay Inslee. REUTERS/Files/File Photo