The United States acquired the islands of Puerto Rico in 1898 after the Spanish-American War. In 1950, Congress enacted legislation (P.L. 81-600) authorizing Puerto Rico to hold a constitutional convention and in 1952, the people of Puerto Rico ratified a constitution establishing a republican form of government for the islands. After being approved by Congress and the President in July 1952 and thus given force under federal law (P.L. 82-447), the new constitution went into effect on July 25, 1952. Puerto Rico is subject to congressional jurisdiction under the Territorial Clause of the U.S. Constitution. Over the past century, Congress passed legislation governing Puerto Ricos relationship with the United States. For example, residents of Puerto Rico hold U.S. citizenship, serve in the military, are subject to federal laws, and are represented in the House of Representatives by a Resident Commissioner elected to a four-year term. Although residents participate in the presidential nominating process, they do not vote in the general election. Puerto Ricans pay federal tax on income derived from sources in the United States, but they pay no federal tax on income earned in Puerto Rico. In the 111th Congress, the Resident Commissioner may vote in legislative committees and...