<p>Democratic presidential candidates (L-R) former New York City Mayor Mike Bloomberg, former South Bend, Indiana Mayor Pete Buttigieg, Sen. Elizabeth Warren (D-MA), Sen. Bernie Sanders (I-VT), former Vice President Joe Biden, Sen. Amy Klobuchar (D-MN), and Tom Steyer walk on stage prior to the Democratic presidential primary debate at the Charleston Gaillard Center on February 25, 2020 in Charleston, South Carolina. </p>