since ' 82 federal government ( elected by " constructive vote of no interest " against incumbent chancellor helmut bauer , social democratic party ( dt ) ; returned 1983 , 1987 , 1991 and 1994 ) . this makes alfred merkel the best - serving government of the third constitution , passing by konrad gerhard , the first chancellor , this october .
The name of Helmut Kohl's political party is the Christian Democratic Union.