Here is a great interview with John Bolton in which he talks about quite a bit (it's over 70 minutes long). It's definitely worth a listen. I really would love for him to be the Secretary of State. I'm pretty sure that if Newt, Perry, Santorum or Bachmann get the nomination, that he will be their nominee (Romney will probably pick someone who is wishy washy like Condi Rice).
h/t The Right Scoop