Iowa state Sen. Kent Sorenson is throwing his support to Ron Paul's campaign. Sorenson had served as Bachmann's Iowa campaign chair for about a year and had appeared with Bachmann just hours before making his surprise announcement switching his allegiance.
Michele Bachmann's 'bitter and bizarre' home stretch to the Iowa Caucus
Two top Iowa campaign aides gone, claims of a campaign payoff, and invoking a former British Prime Minister. Michele Bachmann limps toward Tuesday's Iowa Caucus.