Like Bill Murray’s character in “Groundhog Day,’’ US Representative Paul Ryan appears condemned to repeat the same experiences over and over again. Whether you loved his ideas or hated them, they opened the door to bipartisan budget negotiations with the White House and to the congressional supercommittee. Both came up short, but they were the closest Washington has come to meaningful budget reform since the 1997 budget act. Now Ryan has turned his attention to tax reform.