ABC News' Mary Bruce Reports: With his sights set on 2012, President Obama will spend the day on an official visit to Puerto Rico, even though the island's 3.7 million residence cannot vote in the general presidential election. The trip is being viewed as a grand gesture aimed at courting Puerto Rican voters on the mainland, particularly those in the key state of Florida.
As a commonwealth, Puerto Ricans have American citizenship, but lack voting representation in Congress and, while they can vote in a primary, they cannot cast votes in the general election.
Shortly after arriving in San Juan from Miami, Fla., this morning, the president will make brief remarks at a welcome event at Luis Munoz Marin International Airport before visiting La Fortaleza, the historic Governor's mansion.
Later, after two interviews with local media, Obama will attend a DNC event.
It's been decades since the last "official" visit by a president to Puerto Rico, not since President Kennedy came in 1961. Presidents Ford and Johnson both visited the island after that, but on business not directly related to Puerto Rico.
This, however, is not Obama's first time on the island. He visited during the 2008 campaign and promised to return.