"The final source of neoconservative persistence is the continued support they get from their close cousins: the liberal interventionists. Neoconservatives may have cooked up the whole idea of invading Iraq, but they got a lot of support from a diverse array of liberal hawks. As I've noted before, the only major issue on which these two groups disagree is the role of international institutions, which liberals view as a useful tool and neoconservatives see as a dangerous constraint on U.S. freedom of action. Neoconservatives, in short, are liberal imperialists on steroids, and liberal hawks are really just kinder, gentler neocons."