CARSON CITY, Nev. (AP) — With the Nevada caucuses less than a week away, Democratic presidential candidates campaigning this weekend were fixated on a rival who wasn't contesting the state. Bernie Sanders, Joe Biden, Amy Klobuchar, Elizabeth Warren and Pete Buttigieg all targeted billionaire Mike Bloomberg, accusing him of buying his way into the election and making clear they were eager to take him on in a debate. “He thinks he can buy this election,” Sanders said of the former New York mayor at a Sunday rally in Carson City, Nevada.