When the Republicans stop obstructing him, and allow Obama to pass the Jobs bill (among other bills stalled because of GOP obstructionism) and see what happens after that.
Yup, until then, it's all on the Repubs to either get out of the way or keep owning the Bush/Cheney economy that they're prolonging, along with the economic disaster those two upstanding business tycoons left behind for the middle class and the poor.