 Amidieu du Clos was among the Catholic industrialists who were well-represented in the Republican Federation (Fédération républicaine), others being François de Wendel, Guy de Wendel and Jean Plichon.He was elected in the second round of the legislative elections of 22–29 April 1928 for the first electoral district of Briey, Meurthe-et-Moselle.Guy de Wendel was the representative of the second district.