President Barack Obama and the Republican Party are “pretty damn dumb” if they can’t reach a deal on the debt ceiling, said Warren Buffett in an interview with CNBC. He said that “the market is not gonna fall apart, because [investors] expect Washington will only act irrationally for a certain length of time,” but it’s clear that he considers the entire controversy to be a distraction at best and a possible disruption to a recovering economy. Republicans historically use debt ceiling as bargaining chip Republicans have used the debt ceiling as a bargaining chip multiple times during the Obama presidency,…