Bernie Sanders' caucus romp Saturday night in Nevada is putting the word "undisputed" in front of "frontrunner" in many news accounts, and the candidate himself was so confident of victory that he headed out to campaign in other states before results were even announced. Unlike Iowa and New Hampshire, however, Sanders was able to harness what the New York Times calls "a multiracial coalition of immigrants, college students, Latina mothers, younger black voters, white liberals and even some moderates who embraced his idea of radical change and lifted him to victory." And while Joe Biden had hoped to fare better in a more diverse state, he failed, and the AP notes that the former vice president may now be up against a firewall in South Carolina.