Democratic presidential candidates, from left, former New York City Mayor Michael Bloomberg, Sen. Elizabeth Warren, D-Mass., Sen. Bernie Sanders, I-Vt., former Vice President Joe Biden, former South Bend Mayor Pete Buttigieg, Sen. Amy Klobuchar, D-Minn., stand on stage before the start of the Democratic presidential debate at Paris Las Vegas on Wednesday, Feb. 19, 2020. (Chase Stevens/Las Vegas Review-Journal) @csstevensphoto