The first major test of billionaire Mike Bloomberg’s presidential campaign plays out in the city of high rollers when he faces questions and sharp elbows on a debate stage for the first time. Bloomberg is a last-minute qualifier for the Democratic debate in Las Vegas on Wednesday night. Bloomberg joins Bernie Sanders, Pete Buttigieg, Joe Biden, Amy Klobuchar and Elizabeth Warren. All Bloomberg’s rivals are debate veterans at this point, which may put the former New York mayor at a disadvantage. The swift rise of Bloomberg’s self-funded campaign has landed him in the top tier of hopefuls, though he won’t appear on ballots until the Super Tuesday primaries on March 3.