the military. you get it done. that's how you're trained. that's what you're out to. >> speculation swirling around washington about the mystery writer behind "o," a presidential novel. now msnbc senior political analyst mark halperin reveals that mark salter, longtime aide to john mccain, is the anonymous author. salter refuses to comment. sarah palin's political action committee raising $279,000 in last month of 2010. she's raising money at a better pace than most presidential conditions have been managing so far. for the entire year palin raised move than $3.5 million and those are things we thought you should know. [ male announcer ] introducing listerine® zero™.