With one Kennedy already on the ballot this fall, don’t be surprised to see another member of the political clan soon make a bid to join the family business. Edward M. Kennedy Jr., the eldest son of the late Massachusetts senator, is consulting with a veteran Washington political hand in a clear sign he’s seriously considering a run for office, the Herald has learned. The 50-year-old Kennedy brought in longtime Democratic strategist Steve McMahon to help him coordinate media interviews at the party convention in Charlotte, and several sources say McMahon also is helping Kennedy with political advice. Kennedy lives...