* '''Legislative''': The Parliament of Sri Lanka is a unicameral 225-member legislature with 196 members elected in multi-seat constituencies and 29 elected by proportional representation. Members are elected by universal suffrage for a five-year term. The president may summon, suspend, or end a legislative session and dissolve Parliament any time after four and a half years. The parliament reserves the power to make all laws. The president's deputy, the prime minister, leads the ruling party in parliament and shares many executive responsibilities, mainly in domestic affairs.