WASHINGTON (AP) — Vice President Joe Biden on Thursday told Democrats to stop apologizing for their policies and go on offense as party leaders try to overcome pessimism about prospects for the November election. .. He said he has signed up to participate in more than 120 races and that Obama has given him permission to participate in every campaign where he can be helpful. "I am so tired about hearing about the demise of the Democratic Party. Give me a break," Biden said. "My central message to you is look: I think we should not apologize for a single...