(snip) But Graham has heard it all before. "What drives my train," he told me when I reached him late in the week, "is not their approval; it's getting it right." The fact that such a sentiment makes Graham an oddball in the Republican Party, and to some extent Congress generally, says less about him than about his colleagues. For all his supposed heresies -- on climate change, judicial nominees, immigration and now his offer to help close the Guantanamo Bay prison -- Graham had a 2009 rating of 88 percent from the American Conservative Union and a lifetime rating...