...my nutshell case for why McCain was functionally a Democrat: As a war hero who's hawkish on foreign policy, he more than matches Bush on the military front. As a reform-minded foe of corporate welfare, Big Tobacco, and the Republican right, he is peerless. McCain is Bush's most vociferous critic, voted against the president's tax cut, forced his hand on campaign finance reform, and federalized airport security in the face of White House opposition. He has co-sponsored numerous bills with Democrats--many of them in the presidential-aspirant class--requiring background checks at gun shows (Lieberman), a patients' bill of rights (Edwards), better...