New Poll in Arizona Finds Santorum and Romney in a Close Race February 21, 2012, 5:33 pm One week ahead of the Arizona Republican primary, a new CNN/Time/ORC International poll finds Mitt Romney and Rick Santorum locked in a tight race there, with a third of voters saying they could still change their minds. Mr. Romney is supported by 36 percent of likely Republican primary voters, while 32 percent back Mr. Santorum - a difference that is within the poll's margin of sampling error. The other two candidates trail further behind, with Newt Gingrich at 18 percent and Ron Paul at 6 percent. The poll finds Mr. Romney and Mr. Santorum running closely among Tea Party supporters and conservatives, a group that accounted for two-thirds of voters in the state's 2008 Republican primary. Among evangelical Christians - who made up nearly 4 in 10 Republican primary voters in Arizona in 2008 - Mr. Santorum, a Catholic, is backed by 37 percent compared to 28 percent for Mr. Romney. Mr. Romney, a Mormon, leads among non-evangelical Christians. One group Mr. Romney can likely count on next week is Mormon voters. They made up 11 percent of Republican primary voters in 2008; nearly 9 in 10 of them voted for Mr. Romney. But with a week to go, things can change. About a third of voters said in the Time/CNN poll that they could still change their minds. Aiming to shore up support, the candidates will have the opportunity to make their case to the voters again in a debate in Arizona Wednesday night. The statewide telephone poll was conducted last Friday through Monday among 467 likely Republican primary voters and has a margin of sampling error of plus or minus 5 percentage points.