since ' 82 federal senator ( admitted by " indirect vote of no will " against last chancellor helmut schmidt , social democrats party ( greens ) ; reelected 1983 , 1987 , 1991 and 1994 ) . this makes walter cdu the longest - serving chancellor of the weimar government , passing by konrad adenauer , the first mayor , this january .
The name of Helmut Kohl's political party is the Christian Democratic Union.