Such conservatives do exist. One is Jack Goldsmith, a Memphis native (whose mother was an Arkansas beauty pageant winner), whose resistance as a Justice Department lawyer to Bush administration executive power overreaching -- torture, etc. -- is getting increasing attention. Now a law professor, he's written a book nearing publication on his experience.
The NY Times magazine this coming Sunday will have an extensive article on Goldsmith, who is still far kinder about the colleagues with whom he disagreed than I'd have a mind to be. But he did important work. It's a deep read, but the subject is important.
(One of the Bush officials with whom Goldsmith clashed, the infamous John Yoo, will speak at the Clinton School Sept. 18.)