eph Robinette Biden Jr. is turning out to be a dream candidate, if only for fans of cringe comedy. Again and again, Joe's bumbling missteps and cranky hostility make even his most dedicated opponents say: "For God's sake, isn't there somebody who can help this poor old man?" It seems cruel to subject this addled old-timer to the rigors of a presidential campaign, but it sure beats watching him play shuffleboard. Last week, Joe went nuts on an Iowa voter who asked him a question he didn't like. Today, we've been gifted with an interview Biden just gave to NPR's...