There developed a split among UDF elected officials, between those such as Gilles de Robien and Pierre-Christophe Baguet, who favored closer ties with the UMP, and those such as François Bayrou who advocate independent centrist policies, while others such as Jean Dionis du Séjour tried steering for a middle course. The most likely reason for many of the UDF's elected officials favouring close ties with the UMP was that most of the UDF's elected positions are obtained through cooperative alliances with UMP. However, the party's base overwhelmingly favored independence. At the congress of Lyon, on 28–29 January 2006, 91% of the members voted to retain the independence of the UDF from the UMP and transform it into an independent centrist party. This outcome meant that the orientation of the evolving UDF would be that of a social-liberal party aiming for a balance between social-democratic and conservative policies.