Puerto Rican citizenship
In 1952, upon U.S. Congress approving the Constitution of the Commonwealth of Puerto Rico, also reaffirmed that Puerto Rican citizenship continued in full force. This was further reaffirmed in 2006 while the U.S. Senate probed into the President's Task Force on Puerto Rico's status. In 1953, U.S Ambassador Henry Cabot Lodge Jr., in a memorandum sent to the United Nations, recognized that "the people of Puerto Rico continue to be citizens of the United States as well as of Puerto Rico."
Antonio Rafael Barceló
In 1922, presiding Chief Justice of the United States, William Howard Taft made the following statement in regard to the :"Balzac v. Porto Rico" case: ""Puerto Rico belongs to the United States, but is not part of the United States. Puerto Rico is an unincorporated territory and even though Puerto Ricans have American citizenship, they do not have the same rights as the common American citizen"".