Marco Rubio and Ted Cruz are fighting for the favor of many of the same undecided voters across Iowa. With the caucuses approaching Feb. 1, even some of the most attentive Republicans say they can't make up their minds.
An overwhelming number of would-be voters say both Cruz and Rubio are in contention for their support. Their policies, personalities and presumed ability to defeat the Democratic nominee in the fall are all under close examination.
Donald Trump comes up often as well, as do retired neurosurgeon Ben Carson and New Jersey Gov. Chris Christie.
People in early voting states like Iowa and New Hampshire are notoriously late deciders and the fact they have a dozen contenders to choose from is making their decision all the more difficult.