Senate ambitions may have played role in governor's courtship
                                
                                
                                    (Newser) -
                                    Arlen Specter’s party switch was a "seriously Machiavellian" move by Joe Biden and, particularly, Gov. Ed Rendell, writes Eleanor Clift of Newsweek. Biden’s self-interest in the matter is obvious: Specter represents the all-important 60th Senate vote. But the "gregarious, ambitious" Rendell, an even closer friend of...