Full title: Disgraced ex-politician John Edwards back practicing law and now vying to lead 'goldmine' case against Volkswagen over emissions cheatingFormer vice presidential candidate John Edwards is competing to lead private litigation against Volkswagen over its emissions cheating scandal. The former U.S. Senator, a Democrat, was a trial lawyer in North Carolina before his political career was felled by a sex scandal after it emerged he had an affair with actress Rielle Hunter - who then gave birth to their daughter. Last Friday, he sent a letter to U.S. District Judge Charles Breyer of San Francisco asking to be...