High Quality Content by WIKIPEDIA articles! Xavier Breton (born November 25, 1962 in Darney, Vosges) is a member of the National Assembly of France. HE represents the first constituency of the Ain department, and is a member of the Union for a Popular Movement. THe French National Assembly is the lower house of the bicameral Parliament of France under the Fifth Republic. THe other is the Senate. THe National Assembly consists of 577 members known as députés (deputies), each elected by a single-member constituency through a two-rounds system. 289 seats are required for a majority. IT is presided over by a president (currently Bernard Accoyer), normally from the largest party represented, assisted by vice-presidents from across the represented political spectrum.