In the November 1958 election, Charles de Gaulle and his supporters (initially organised in the "Union pour la Nouvelle République-Union Démocratique du Travail", then the "Union des Démocrates pour la Vème République", later still the "Union des Démocrates pour la République", UDR) won a comfortable majority. In December, he was elected President of France by the electoral college with 78% of the vote; he was inaugurated in January 1959. As head of state, he also became "ex officio" the Co-Prince of Andorra.