The Sean Hannity Show is the 2nd most listened to radio show in America (after Rush Limbaugh). His show went national in 2001 and now boasts 515 affiliates and a weekly audience of over 14 million. The show is an outlet for moral and conservative listeners who are tired with the shock jocks of radio. Sean has no fear to tread upon the moral issues that most mainstream media refrains from. And this makes The Sean Hannity show one of the most unique radio talk shows on the airwaves.
She's free to do what ever she wants but I think if she takes her campaign too much further she will become very unpopular in the democratic party very quickly which would hurt her chances if she plans to run in 2012.