Rival Democrats accuse Bloomberg of trying to ‘buy’ election

Democratic presidential candidate and former New York City Mayor Michael Bloomberg speaks during his campaign launch of "Mike for Black America," on Thursday at the Buffalo Soldiers National Museum in Houston. (AP Photo/David J. Phillip)

CARSON CITY, Nev. — With the Nevada caucuses less than a week away, Democratic presidential candidates campaigning Sunday were fixated on a rival who wasn’t contesting the state.