The National Assembly makes legislation. The body consists of 155 members elected for four-year terms who meet three times per year. The Assembly holds regular sessions twice a year, starting in March and October, and can hold special sessions when called by the prime minister. Deputies elect a National Assembly president every two years. The president must sign or reject newly passed laws within 15 days. The National Assembly must approve the prime minister's plan of government and may force the prime minister to resign through a majority vote of no confidence. However, if the National Assembly rejects the executive branch's programme twice in one year, the president may disband the Assembly and call for new legislative elections. In practice, the president exercises considerable influence over the National Assembly through his party, the Patriotic Salvation Movement (MPS), which holds a large majority.