The Government of Puerto Rico is a republican form of government with separation of powers, subject to the jurisdiction and sovereignty of the United States.Article I of the Constitution of Puerto Rico defines the government and its political power and authority pursuant to U.S. Pub.L. 82–447. Said law mandated the establishment of a local constitution due to Puerto Rico's political status as a commonwealth of the United States. Ultimately, the powers of the government of Puerto Rico are all delegated by Congress and lack full protection under the U.S. Constitution. Because of this, the head of state of Puerto Rico is the President of the United States.
Structurally, the government is composed of three branches: the executive, legislative, and judicial branch. The executive branch is headed by the governor, currently Ricky Rosselló, who is also the head of government. The legislative branch consists of a bicameral legislature, namely the Legislative Assembly, composed by the Senate as its upper house and by the House of Representatives as its lower house. The governor and legislators are elected by popular vote every four years.