Voting rights of United States citizens in Puerto Rico, like the voting rights of residents of other United States territories, differ from those of United States citizens in each of the fifty states and the District of Columbia. Residents of Puerto Rico and other U.S. territories do not have voting representation in the United States Congress, and are not entitled to electoral votes for President. The United States Constitution grants congressional voting representation to U.S. states, which Puerto Rico and other U.S. territories are not, specifying that members of Congress shall be elected by direct popular vote and that the President and the Vice President shall be elected by electors chosen by the States.
Puerto Rico is a territory under the sovereignty of the federal government, but is not part of any state nor is it a state itself. It has been organized (given a measure of self-rule by the Congress) subject to the Congress' plenary powers under the territorial clause of Article IV, sec. 3, of the U.S. Constitution. In the U.S. House of Representatives, Puerto Rico is entitled to a Resident Commissioner, a delegate who is not allowed to vote on the floor of the House, but can vote on procedural matters and in House committees. In most other U.S. overseas (and historically pre-state) territories, as well as the District of Columbia, a similar representative position is styled Delegate.