Obama's Hoffa Backtracks on Goolsbee Comment

Teamsters president pulls back from his statement during media conference call where he said Obama economic adviser should address his meeting with Canadian officials, saying there's nothing to clarify. But: Maintains Penn's meeting with Colombian officials "really hurts (Clinton's) credibility" on trade. Obama camp also released a statement on Clinton and her campaign comparing Penn flap to Goolsbee, saying the idea is "laughable" but "typical." Read more here. Meanwhile: On Clinton call, spokesman/strategist Wolfson says Penn will remain part of the strategic and polling team, but declines to describe Penn's participation in campaign conference calls: "I appreciate the question, but I'm not going to answer it." Refers questions on Penn back to Sunday's brief campaign statement. Wolfson also calls on Obama to take down TV ad in which he denies taking money from oil companies. Factcheck.org has called it "misleading."