Sen. Thad Cochran (R-MS) resigned from office on Monday, effective April 1. He has been in failing health for several months. “Longtime Republican Sen. Thad Cochran of Mississippi, chairman of the Senate Appropriations Committee, told The Associated Press on Monday that he will resign April 1 because of health problems,” the wire service reported from Jackson, Mississippi late Monday afternoon: Cochran, who turned 80 in December, stayed home for a month last fall with urinary tract infections, returning to Washington in October to give Republicans the majority they needed to pass a budget plan. “I regret my health has become...