Most fan growth has slowed among Republican presidential primary candidates since the final debate on December 15th, according to our Inside Facebook 2012 Election Tracker. In recent days, though, Newt Gingrich has seen a small increase in daily new fans and Michele Bachmann has gone into the negative.

There was an uptick in Gingrich’s fan growth today, which could be related to his recent denouncement of attack ads from Mitt Romney and other Republican candidates. A post on Gingrich’s Facebook page Thursday evening — which included a quote from his appearance on The Laura Ingraham Show — has far gotten more likes, comments and shares than any post since December 11th.

Ron Paul saw more than 6,000 new fans the day after the debate and then again after an appearance on Jay Leno. Paul has not been able to maintain that sort of momentum, but he continues to see more daily growth than any other candidate.

Bachmann has lost fans over the last two days, though she is still ahead of where she was a week ago. Her page is graphed below: