Think Progress is reporting that there are now 16 tea partiers that are challenging GOP incumbents and recruits. Most of the races appear to be in the House, so this is great news for Democrats. Last week it was reported that the NRCC is facing some serious troubles raising cash for the elections, and if they have primary battles to worry about then it will drain the already depleted coffers. I bet there is some bit panic going on now in the inner GOP circles.