It might be a blip, but the latest CNN/ORC national poll out this afternoon shows a new reason for more of Mitt Romney's hair to turn gray.
Overall, the survey showed Newt Gingrich edging past Romney to lead the field overall, with 24 percent compared to 20 percent for the former Massachusetts governor. That makes Gingrich the sixth GOP contender to lead a CNN/ORC poll this year - a level of volatility unmatched in any Republican presidential race since 1964.
Gingrich actually didn't move much in the new poll, compared to the previous survey last week when he surged into a near-tie with Romney. Gingrich's support among the roughly half of the GOP that identifies with the tea party edged up only from 29 percent to 31 percent, a change within the poll's 6.5 percent margin of error among that subgroup. Among the half that doesn't identify with the tea party, Gingrich also remained virtually unchanged at 17 percent, compared to 16 percent last week.