Nevada caucus results keep Michael Bloomberg in a tougher spot in his quest to become the preferred centrist alternative to Bernie Sanders in the Democratic presidential election, with rival candidates unwilling to bow out of the race.

Bernie Sanders decisively won the caucuses with 44.6% of the vote and 4% of precincts reporting, while former South Bend, Indiana, Mayor Pete Buttigieg and former Vice President Joe Biden were battling for second place.