“I don’t think it was constructive for conservatives to be carping at each other. At the same time, the purpose of that passage is to try and unify our party. I don’t think we can succeed if all we do is criticize and define what we are against,” he said.

Ryan wrote in his new book that came out last week that he believed the Republican attempt to defund Obamacare by shutting down the government was “a suicide mission” but that too many members of his own party were unwilling to abandon the idea for fear that they would be punished by outside groups aligned with the tea party.

He told CBS News’ Bob Schieffer that he didn’t believe the strategy was “really legitimate” because a government shutdown cannot stop an entitlement program, not to mention there was no support for the strategy in the Senate.