You're probably familiar with it, but even the conservatives don't think too highly of him.
Flirting with Fascism
Neocon theorist Michael Ledeen draws more from Italian fascism than from the American Right.
On the antiwar Right, it has been customary to attack the warmongering neoconservative clique for its Trotskyite origins. Certainly, the founding father of neoconservatism, Irving Kristol, wrote in 1983 that he was “proud” to have been a member of the Fourth International in 1940. Other future leading lights of the neocon movement were also initially Trotskyites, like James Burnham and Max Kampelman—the latter a conscientious objector during the war against Hitler, a status that Evron Kirkpatrick, husband of Jeane, used his influence to obtain for him. But there is at least one neoconservative commentator whose personal political odyssey began with a fascination not with Trotskyism, but instead with another famous political movement that grew up in the early decades of the 20th century: fascism. I refer to Michael Ledeen, leading neocon theoretician, expert on Machiavelli, holder of the Freedom Chair at the American Enterprise Institute, regular columnist for National Review—and the principal cheerleader today for an extension of the war on terror to include regime change in Iran.
link:
http://www.amconmag.com/06_30_03/feature.html
http://www.kliljedahl.net