Although I wouldn't consider the nomination his, yet. For a while, I would have said it was his for the taking. But many libertarians, and enthusiasts from the Ron Paul Revolution, might find this unsatisfactory: "In a news conference, Barr said 'only a fool' would specify a date and timetable for withdrawal from Iraq. But he said it's 'extremely important' and in the best interest of national defense to draw down dramatically the US troop presence in Iraq and decrease the military and political footprint in Iraq." For a critique of some of his other foreign policy views, see Justin Raimondo.
