2020 presidential candidates Michael Bloomberg, founder of Bloomberg LP, from left, Pete Buttigieg, former mayor of South Bend, Senator Elizabeth Warren, a Democrat from Massachusetts, Senator Bernie Sanders, an Independent from Vermont, former Vice President Joe Biden, Senator Amy Klobuchar, a Democrat from Minnesota, and Tom Steyer, co-founder of NextGen Climate Action Committee, stand on stage ahead of the Democratic presidential debate in Charleston, South Carolina, U.S., on Tuesday, Feb. 25, 2020. Michael Bloomberg is trying for a do-over in Tuesdays Democratic presidential debate, previewing that hell turn his focus to newly minted front-runner Bernie Sanders after a much-criticized debut at last weeks face-off. Photographer: Alice Keeney/Bloomberg via Getty Images
