Dame Pauline Green, is a former Labour and Co-operative Member of the European Parliament and former Leader of the Parliamentary Group of the Party of European Socialists (PES). As leader of the Parliamentary Group of the PES, she had a central role in the controversy surrounding the failure to discharge the European Commission (EC)'s 1996 budget, bringing the first motion of censure against the commission but voting against it. She then changed her position following corruption allegations raised by EC official Paul van Buitenen to call for Jacques Santer to react promptly or be sacked. Green lost the leadership of the PES in 1999, which was attributed in part to her handling of the incident.

The president of the European Commission is the head of the European Commission, the executive branch of the European Union (EU). The president of the Commission leads a cabinet of Commissioners, referred to as the College. The president is empowered to allocate portfolios among, reshuffle, or dismiss Commissioners as necessary. The College directs the commission's civil service, sets the policy agenda and determines the legislative proposals it produces. The commission is the only body that can propose or draft bills to become EU laws.