 However, he left it in 1967 and founded the Union of Clubs for the Renewal of the Left, which joined the Federation of the Democratic and Socialist Left (FGDS) which had supported left-wing candidate François Mitterrand at the 1965 presidential election.Then, he returned to the "old socialist house" when it was replaced by the Socialist Party (PS).Reconciled with Guy Mollet, Savary succeeded him to the leadership of the party in 1969.