failure? >> reporter: romney gained only a point in the latest fox poll but perry lost ten to fall in second place. herman cain skyrocketed to a close third. newt gingrich has surged to be the only other candidate in double digits. romney campaigns as the republican best equipped to battle the president on the economy. and released a new web video juxtaposing to write the economy with voters who say it's failed. >> no benefit from it. >> reporter: perry attacked romney using the hard cover romney book "no apology" to imply that he backed the obama stimulus. >> the all-democrat stimulus passed in early 2009 will accelerate the timing of the start of the recovery. >> reporter: the perry attack suggests romney flip-flopped revising the paperback to read "the all democrat stimulus passed in early 2009 has been a failure." but romney did criticize the stimulus elsewhere in the hard cover book in an interview with fox news all but accused perry of lying. >> he has a hard time getting