Ben Smith correctly identifies the first sort of interesting event in the Republican presidential primary race: Mississippi Governor Haley Barbour has had enough of Afghanistan and wants to start drawing down troops. No details about how many and when, of course–and, in the end, Barbour’s timetable may not be all that different from Obama’s, which, I expect will have lots of troops coming home next year. But this is Haley Barbour, folks–and we know two things about him: he’s not the world’s boldest policy thinker and he’s probably the smartest political strategist in the field. When Barbour decides that Afghanistan is a loser, you can bet that more than a few Republicans are heading that way–and that means interesting times for the trigger-happy neoconservatives who have dominated Republican foreign policy thinking in recent years. It also means that the foreign policy debate in the Republican primaries may be a real eye-opener.