Gabon is a republic with a presidential form of government under the 1961 constitution (revised in 1975, rewritten in 1991, and revised in 2003). The president is elected by universal suffrage for a seven-year term; a 2003 constitutional amendment removed presidential term limits and facilitated a presidency for life. The president can appoint and dismiss the prime minister, the cabinet, and judges of the independent Supreme Court. The president also has other strong powers, such as authority to dissolve the National Assembly, declare a state of siege, delay legislation, and conduct referenda.