The National Assembly consists of 577 members known as "députés" (deputies), each elected by a single-member constituency. Deputies are elected in each constituency through a two-rounds system. It is presided over by a president normally from the largest party represented, assisted by vice-presidents from across the represented political spectrum. The term of the National Assembly is five years; however, the President of France may dissolve the Assembly (by i.e.: calling a new election), unless he dissolved it in the preceding year.