From left, Democratic presidential candidates, former New York City Mayor Mike Bloomberg, former South Bend Mayor Pete Buttigieg, Sen. Elizabeth Warren, D-Mass., Sen. Bernie Sanders, I-Vt., former Vice President Joe Biden, Sen. Amy Klobuchar, D-Minn., and businessman Tom Steyer stand on stage before a Democratic presidential primary debate, Tuesday, Feb. 25, 2020, in Charleston, S.C. (AP Photo/Matt Rourke)