Joseph Delachenal, deputy of Savoy from 1910 till 1914, then from 1919 till 1924 and from 1945 till 1958, was not one of the major personality of the national political life of the first 20th century. His influence, solid in spite of his election defeats, exceeded hardly the regional horizon. But his longevity confered a real interest on his itinerary of " moderate Christian " in a department of catholic tradition but where the majority of the electorate reject the directives of the clergy, where the Left occupied strong positions and where the right is often divided and reduced to impotence. The republican Delachenal joined politics in order to provide social work, he was attacked by the Action Française. From his first legislative mandate He shifted towards the Progressive Group and the Republican Federation. After the Second World War he joined the Independents, what allows him to pursue an action turned at first to the rural world and to keep an autonomy in front of partisan political process while he was still striving to be a referee in the conservative family. He would like to gathered it under his leadership, not without leading tensions with the Christian Democrats.