Powell may be rational, but he is not a Republican.<quoted text>
This is where Powell and similar rational Republicans get it wrong, Reagan et. al. are the guys that cut the moorings and set the party of Goldwater and Eisenhower adrift. They're the ones who embraced the insane right wing "christians" that are forcing the party into irrelevancy. They're the ones who made the party a punchline rather than a reasoned counterpoint to the excesses of the left. The ones that made they've made their own excesses more abhorrent than those of the left.
If he wanted a "Republican", then Obama should have selected Powell to be Secretary of Defense.