Question: Which Secretary of State for Work and Pensions, who also served as the MP for Pontefract and Castleford since 1997, is associated with John Webster Robertson?
Sentence (from "Yvette Cooper"): Yvette Cooper (born 20 March 1969) is a Labour Party politician who has been the Member of Parliament (MP) for Normanton, Pontefract and Castleford since 2010, having served as the MP for Pontefract and Castleford since 1997.
Relevant evidence: Yes