Tom Morrissey
As Republicans debate, voters prepare for next round of primaries
Voters in Arizona and Colorado will go to the polls on Tuesday to state their preference among the four remaining Republican presidential hopefuls: Mitt Romney, Rick Santorum, Newt Gingrich and Ron Paul. At a debate Wednesday night, the closeness of the race was on display as the candidates fought it out with some of the sharpest exchanges of the campaign.