 He has since worked as an attorney (1965–1970), Chief of Staff to Prime Minister Ruud Lubbers in 1983, and Secretary General at the Ministry of General Affairs (1986–1994).In 1994, he became a member of the Raad van State is highest administrative court in the Netherlands.In 2003 he was an informateur for the Crown along with Frits Korthals Altes of the People's Party for Freedom and Democracy (VVD), helping to form the second Balkenende cabinet.