Obama has political reasons for a quick visit to Puerto Rico - CNN

Obama has political reasons for a quick visit to Puerto Rico - CNN

The roughly 4 million residents of the U.S. Caribbean territory are American citizens but can't vote for president, while the almost 5 million Puerto Ricans living in the 50 U.S. states have full voting rights, and Obama needs strong support in 2012 from what traditionally has been a largely Democratic constituency.