Democratic presidential candidate Sen. Bernie Sanders (D-VT) responded to criticism from Democratic operative James Carville in an interview with CNN host Anderson Cooper on Wednesday’s broadcast of his CNN program. Sanders said Carville is a "political hack" who said "terrible things" about Barack Obama when Hillary Clinton ran against him in the 2008 Democratic primary. ANDERSON COOPER, CNN HOST: James Carville, who is obviously a longtime Clinton loyalist, was supporting Senator Michael Bennet (D-CO) […]