The CQ piece on opposition to Chris Hill ( linked by Michael Goldfarb below) has a hilarious and horrifying kicker:

Armed Services Chairman Carl Levin, D-Mich., also defended the Hill nomination and downplayed the importance of having an ambassador who knows a lot about Iraq. "We have ambassadors that go all over the world that don't have any experience in the areas that they run," Levin said.

Because, y'know, the ambassador to Iraq is just about as important as the ambassador to the Maldives.