Puerto Rico is only the latest in a long line of would-be 51st states. Over the past 200 years, there have been several attempts to carve out new states from existing ones, mostly triggered by tax and budget feuds. "South California" tried to split from the more industrialized north in 1859, but Congress said no. In 1861, parts of Tennessee, Georgia, and Alabama attempted to form a neutral state called Nickjack that wouldn't secede from the Union. More recently, rural "South Jersey" tried several times to split from its crowded urban north in the 1970s and 80s [source: Trinklein].
As a commonwealth, Puerto Rico is as close as you can get to being a state without getting a star on the flag. Puerto Ricans are U.S. citizens who pay and receive Social Security benefits. They cannot vote in federal elections and they don't pay federal income taxes. Puerto Rico is in charge of its own internal affairs, but the U.S. controls interstate trade, foreign relations, customs, military service, immigration, agriculture, radio and TV and the postal service.
Now that Puerto Rican citizens passed the referendum on statehood, what are the odds that Congress will take up their cause? Not very good. Although President Obama pledged to take action if Puerto Rican citizens made their preference clear, the political timing is not in Puerto Rico's favor. Puerto Rico suffers from a staggering 45 percent poverty rate -- more than double Mississippi, the current most impoverished state -- and would be entitled to $7.7 billion in federal spending on social programs, Medicaid and more. Since spending cuts are a top congressional priority, this is strike against Puerto Rican statehood [source: Fabian].
Puerto Rico is one of several "unincorporated territories" acquired by the U.S. through war treaties and purchases. In 1901 and 1902, the Supreme Court ruled in the so-called "Insular Cases" to afford limited constitutional rights to unincorporated territories like Puerto Rico and Guam, on the grounds that they would never likely become states [source: Helgesen].
Today, both Guam and the U.S. Virgin Islands share Puerto Rico's odd political status; their residents are U.S. citizens who cannot vote in federal elections. Guam is hoping to hold its own referendum on statehood in 2014, but the U.S. Virgin Islands have no plans for such a vote, known as a plebiscite [source: Sablan]. Puerto Rico has shown the most political interest in statehood, holding four such plebiscites since 1967. In all previous votes, Puerto Ricans opted to remain a U.S. territory [source: Reuters].
For lots more information on U.S. history, the Constitution and the federal government, check out the links below.
Author's Note: How do new states become part of the U.S.?
The Puerto Rican vote for statehood grabbed headlines, but the results of the ballot measure were far from clear. The referendum asked two separate questions: "Are you satisfied with the current territorial status?" to which 54 percent voted no. The second question asked, "Which status do you prefer?" When the votes were tallied, 61.5 percent chose statehood, while 33 percent chose "sovereign free associated state," which is the same as the current commonwealth status. But a full 466,337 people purposely left the second question blank in protest to the odd two-part construction of the referendum, which many considered rigged for statehood supporters. If those blank votes are counted, then statehood loses. The Obama administration had promised to act on a clear mandate from the Puerto Rican people, but this referendum is anything but.
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- Fabian, Jordon. ABC News/Univision. "Will Puerto Rico Become the 51st State? Not So Fast." Nov. 8, 2012. (Nov. 13, 2012) http://abcnews.go.com/ABC_Univision/Politics/puerto-rico-51st-state-fast/story?id=17674879#.UKJyyuOe-DH
- Hawaii Tourism Authority. "Hawaii History" (Nov. 13, 2012) http://www.gohawaii.com/statewide/travel-tips/history
- Helgesen, Elise. The Center for Voting and Democracy. "Puerto Rico and Other Territories Vote in Primaries, But Not in General Election." March 19, 2012. (Nov. 13, 2012).http://www.fairvote.org/puerto-rico-and-other-territories-vote-in-primaries-but-not-in-general-election/#.UKqDPeOe-DE
- Howell, Jr., Tom. Washington Times. "D.C. statehood project put on hold". Nov, 22, 2012. (Nov. 23, 2012). http://www.washingtontimes.com/news/2012/nov/22/dc-statehood-project-put-on-hold-state-by-state-ca/
- Lehleitner, George. University of Alaska. "Creating Alaska: Alaska-Tennessee Plan" (Nov. 13, 2012) http://www.alaska.edu/creatingalaska/statehood-files/tennessee-plan/admission-of-the-bold/
- Library of Congress. Primary Documents in American History. "Louisiana Purchase" (Nov. 13, 2012) http://www.loc.gov/rr/program/bib/ourdocs/Louisiana.html
- Monk, Linda. The Words We Live By. National Constitution Center. "Article IV" (Nov. 13, 2012) http://ratify.constitutioncenter.org/constitution/details_explanation.php?link=099&const=04_art_04
- National Archives. OurDocuments.gov. "Transcript of the Treaty of Paris (1783)" (Nov. 13, 2012) http://www.ourdocuments.gov/doc.php?doc=6&page=transcript
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- Reuters. "Puerto Ricans to vote on U.S. territorial status." Nov. 4, 2012 (Nov. 13, 2012) http://www.reuters.com/article/2012/11/04/usa-campaign-puertorico-idUSL1E8M401F20121104
- Trinklein, Michael J. The Wall Street Journal. "Altered States." April 17, 2012 (Nov. 13, 2012) http://online.wsj.com/article/SB10001424052702304510004575185973863870474.html#project%3DLOSTSTATES1004%26articleTabs%3Darticle
- U.S. Department of State. Office of the Historian. "Milestones: 1830-1860" (Nov. 13, 2012) http://history.state.gov/milestones/1830-1860/TexasAnnexation
- West Virginia Archives and History. "A State of Convenience: The Creation of West Virginia" (Nov. 13, 2012) http://www.wvculture.org/history/statehood/statehoodtoc.html