PuertoRico, the smallest of the Greater Antilles, includes the main island of PuertoRico and a number of smaller islands and keys, including Mona, Vieques, and Culebra.
PuertoRico's formal Chief of State is the President of the United States; however, most of the executive functions are carried out by the governor.
A non-voting Resident Commissioner is elected by the residents of PuertoRico to the U.S. Congress.