Or 46. Or 58. Or 7.
                                
                                
                                    (Newser) -
                                    As Republicans voted to replace ObamaCare Thursday, Democrats  were heard singing  the sports-anthem taunt, "Hey, Hey, Hey, Goodbye." A new report from political forecaster the  Cook Political Report  shows why: In the aftermath of the vote, Cook downgraded Republican chances in 20 congressional races in 2018. The scary...