French former socialist ministers Segolene Royal (C) Dominique Strauss-Kahn (R) and Laurent Fabius (L), contenders for the opposition Socialist Party (PS) nomination in France's presidential election in 2007, arrive, 26 October 2006 at the Paris' Zenith, to attend a debate in a bid to influence opinion among 200,000 card-carrying party members who are to choose the PS's nominee at an internal vote on 16 November 2006.