As Leader of the House he was responsible for reforming the hours and practices of the Commons and for leading the debate on reform of the House of Lords. He also spoke for the Government during the controversy surrounding the membership of Commons Select Committees which arose in 2001, where Government whips were accused of pushing aside the outspoken committee chairs Gwyneth Dunwoody and Donald Anderson. He was President of the Party of European Socialists from May 2001 to April 2004.