"Chairman of the Democratic Union" . "1991" . "1990" . . . . "UD" . . . . "Polish Democratic Union" . . . "Democratic Union" . "UD" . . "Democratic Union (Poland)" . "Democratic" . . . . "Forum of the Democratic Right" . . . . . . . . "Progressive-Democratic Union" . . . "Democratic Poland" . . . "Democratic Union (Poland)" . . . . . "1994" . . . . . . . "1994-04-23" . "The Democratic Union" . "the Democratic Union" . . "Democratic Union (UD)" . . .