For the first time, his leadership over the RPR was challenged. Charles Pasqua and Philippe Séguin criticised his abandonment of Gaullist doctrines. On the right, a new generation of politicians, the "renovation men", accused Chirac and Giscard of being responsible for the electoral defeats. In 1992, convinced a candidate could not become president whilst advocating anti-European policies, he called for a "yes" vote in the referendum on the Maastricht Treaty, against the opinion of Pasqua, Séguin and a majority of the RPR voters, who chose to vote "no".