Puerto Rican citizenship
On March 2, 1917, the Jones–Shafroth Act was signed, collectively making Puerto Ricans United States citizens without rescinding their Puerto Rican citizenship. In 1922, the U.S. Supreme court in the case of "Balzac v. Porto Rico" ruled that the full protection and rights of the U.S constitution do not apply to residents of Puerto Rico until they come to reside in the United States proper. Luis Muñoz Rivera, who participated in the creation of the Jones-Shafroth Act, gave a speech in the U.S. House floor that argued in favor of Puerto Rican citizenship. He declared that "if the earth were to swallow the island, Puerto Ricans would prefer American citizenship to any citizenship in the world. But as long as the island existed, the residents preferred Puerto Rican citizenship." The Jones Act allowed locals to renounce the United States citizenship and remain exclusively Puerto Rican citizens, at the cost of being stripped of the right to vote. Despite these arbitrary limitations, 287 residents completed the process to forfeit the statutory recognition.
Puerto Ricans
Puerto Ricans became citizens of the United States as a result of the passage of the Jones-Shafroth Act of 1917. Since this law was the result of Congressional legislation, and not the result of an amendment to the United States Constitution, the current U.S. citizenship of Puerto Ricans can be revoked by Congress, as they are "statutory citizens", not "14th Amendment citizens". The Jones Act established that Puerto Ricans born prior to 1899 were considered naturalized citizens of Puerto Rico, and anyone born after 1898 were U.S. citizens, unless the Puerto Rican expressed his/her intentions to remain a Spanish subject. Since 1948, it was decided by Congress that all Puerto Ricans, whether born within the United States or in Puerto Rico, were naturally born United States citizens.