Newt wants to be a player in D.C. again. He believes the way to reestablish his reputation is through the MSM, the media that wouldn't give him the time of day because they hate him UNLESS he bashes the President.
IMO, he made the wrong choice. The people he needs to reestablish credibility with are Republicans/conservatives that remember what led to his fall from power. Going after the President and joining with Hillary doesn't do that.
Sean Hannity has him (Gingrich) on his radio show all the time. I've started listenting to CDs on the way home from work.
Sean was too tabloid for my tastes.