we re in mesa, arizona, tonight s cnn arizona republican presidential debate. it s been about a among since they last faced off and since then even more upheaval. rick santorum is now the surging candidates and the one for mitt romney to beat tonight. both men we are campaigning down to the wire and may have given each other press ammunition. he s here with us, going through the details. what s the latest? for the top two candidates, the devil is in the debails. two potential flash points. tonight mitt romney s new tax plan and rick santorum s faith-based brand of politics. he made what could be a risky move, a plan that could come under fire. i m going to lower rates across the board for all americans by 20%. it will last setting the top bracket for the wealthier earners at 28%, and cut the corporate tax rate to 25%, lower than the 28% proposed by the president, but higher than his gop rivals. romney would offset some of those cuts by limiting popular deductions for th
arizona, you re in the situation room. this just coming in. on the eve of the new nuclear weapons showing that just how tight the race is. take a look 32% say rick san storm, but with the sampling eras that s constituentically a tie. ron paul coming in at 6%, let s go in depth right now with our chief political analyst gloria borger and depend can i washington bureau chief michael crowley. gloria, first you. arizona we all thought was supposed to be relatively easy for mitt rom in, but this a week before the primary is a horse race. nothing succeeds like success. rick santorum has had a lot of success, and we see him defining himself as the cultural conservative. as you point out, this was supposed to be an easy state for mitt romney. he could win, but there s a substantial number of mormons, he has moved way to the right and also has an organization dating back. show shows you that republican voters can to get their arrange. they were for pretty romney, but we know in mi