I believe this is why Sarah Palin graciously bowed out. The left had her as enemy number one, and the Repub eStab was yanking the rug. The numbers were showing that she would be extremely popular with here base but ultimately give a win to Obama.
Romney: Kind of a mix of John Kerry/Obama.
I think Sarah had to know for sure if Christie would get in against Romney to see if would be worth it for her. Of course, Christie was for Romney the whole time.