Washington | Rival Democrats battling for the Nevada caucuses later this week seized on Michael Bloomberg's Republican past and comments about policing, women and race to argue he has no place in the crowded presidential primary field.
Mr Bloomberg has seen his standing in the polls spike in recent weeks. His rise was aided by more than $US400 million ($595 million) in self-funded advertising and millions more on staffing, putting him in the sights of the rest of the field.
