Al Gore has contributed an op-ed to the Guardian: (h/t Gregory)

The pursuit of "dominance" in foreign policy led the Bush administration to ignore the UN, to do serious damage to our most important alliances, to violate international law, and to cultivate the hatred and contempt of many in the rest of the world. The seductive appeal of exercising unconstrained unilateral power led this president to interpret his powers under the constitution in a way that brought to life the worst nightmare of the founders. Any policy based on domination of the rest of the world not only creates enemies for the US and recruits for al-Qaida, but also undermines the international cooperation that is essential to defeating terrorists who wish to harm and intimidate America.

Yeah, what he said.