In the interview immediately before the clip Stewart aired Romney said — discussing comments by Christina Romer, the Obama Chairperson of the Council of Economic Advisors — that he wanted President Obama to succeed.
“Republicans want to do what’s right for America, and want to get this economy going again. We want the president succeed,” Romney said.
Later, in the fuller context of the partial clip Stewart aired, Romney argues the he doesn’t want the President to install failed policies for the very purpose they won’t succeed. Romney wasn’t arguing that he didn’t want the President to succeed.