Original: Wulff has been one of the four deputy chairmen of the CDU party at the federal level since 1998, and has been a board member of the Konrad Adenauer Foundation since 2003.
Simplified: Wulff has been one of the four deputy chairmen of the CDU party at the federal level since 7 November 1998. He has also been a board member of the Konrad Adenauer Foundation since 2003.