Joe Klein on post-partisanship:

Obama should now understand that the Republicans are not reliable partners–at least, not for the moment. Most are stuck in the contentious past, rutted in Reaganism, intent on taking a Hooverist course on the economy (although there remains cause for optimism on foreign policy). The President's default position, after the stimulus fight and the Gregg fiasco, should be to appoint Democrats to significant domestic policy positions–the notion of making a public show of bipartisanship, by reaching across the aisle to someone like Senator Gregg, gives the opposition too much credibility and leverage. Which doesn't mean that Obama shouldn't remain as conciliatory, and open to constructive Republican ideas, as he has been. There are potential long-term benefits from such openness (and short-term benefit as well, since the public clearly believes that Obama has been more reasonable than the Republicans).