Back in the day, there were quadrennial Sam Nunn for Vice President, or maybe President, columns. I never saw it. Nunn is estimable–his work on nuclear proliferation especially–but so taciturn as to be easily mistaken for a bale of hay. In any case, now he’s opened the door to an independent run for President and Ed Kilgore, a former Nunn staffer, has a good evaluation of who Nunn is and what this is about.
My own feeling is that I’ll start thinking third party if we wind up with a Gravel-Brownback race. But not before.