Of course the greatest race that never was, was Newt Gingrich v. William B.J. Clinton in 1996.
He's definitely not too old, but there may be too much water under the bridge.
I want Newt to try to fill Cheney's shoes, if he can. The VP needs to be a "bulldog" about policy.
I doubt if he will be able to present himself as "electable" in 08. I see no one "electable", yet.
(I will not vote for a Washington insider as POTUS.)
In retrospect, maybe it's a good thing he didn't run in '96. As it turned out, Newt had his own "Lewinsky" problems.