Democratic 2020 U.S. presidential candidates (L-R) former New York City Mayor Michael Bloomberg, former South Bend Mayor Pete Buttigieg, Senator Elizabeth Warren, Senator Bernie Sanders, former Vice President Joe Biden, Senator Amy Klobuchar and billionaire activist Tom Steyer take the stage for the tenth Democratic 2020 presidential debate at the Gaillard Center in Charleston, South Carolina, U.S. February 25, 2020. REUTERS/Randall Hill
