A number of polls have shown Newt Gingrich surging in the polls, but Public Policy Polling's new survey is the first to show the former speaker of the House with a national lead:
Newt Gingrich has taken the lead in PPP's national polling. He's at 28% to 25% for Herman Cain and 18% for Mitt Romney. The rest of the Republican field is increasingly looking like a bunch of also rans: Rick Perry is at 6%, Michele Bachmann and Ron Paul at 5%, Jon Huntsman at 3%, and Gary Johnson and Rick Santorum each at 1%.
Compared to a month ago Gingrich is up 13 points, while Cain has dropped by 5 points and Romney has gone down by 4. [...]
Gingrich's lead caps an amazing comeback he's made over the last 5 months. In June his favorability nationally with Republican voters plummeted all the way to 36/49. Now he's at 68/23, representing a 58 point improvement in his spread since then. As recently as August Gingrich was mired in single digits at 7%, and even in September he was at just 10%. He's climbed 18 points in less than 2 months.
There's reason to think that if Cain continues to fade, Gingrich will continue to gain. Among Cain's supporters 73% have a favorable opinion of Gingrich to only 21% with a negative one. That compares to a 33/55 spread for Romney with Cain voters and a 32/53 one for Perry. They like Gingrich a whole lot more than they do the other serious candidates in the race.