Actor and ex-senator has GOP royalty in his camp, frontrunners in his sights
                                
                                
                                    (Newser) -
                                    Fred Thompson will enter the 2008 presidential race in early July, the Politico reports, bolstered by millions of dollars in contributions and the support of key Republican insiders. The "Law & Order" star and former Tennessee senator, a hard-line conservative, will pitch himself as a steady, consistent presence who...