 On 30 April 1990, Voorhoeve announced he was stepping down as Leader and Parliamentary leader.Voorhoeve assumed responsibility for the party's defeat in the election, but continued to serve in the House of Representatives as a frontbencher chairing the .In December 1990, Voorhoeve was nominated as Executive Director of the Institute of International Relations Clingendael and he resigned as a Member of the House of Representatives upon his appointment on 10 January 1991.