Full Text of the 23rd Amendment
Section 1. The District constituting the seat of Government of the United States shall appoint in such manner as the Congress may direct:
A number of electors of President and Vice President equal to the whole number of Senators and Representatives in Congress to which the District would be entitled if it were a State, but in no event more than the least populous State; they shall be in addition to those appointed by the States, but they shall be considered, for the purposes of the election of President and Vice President, to be electors appointed by a State; and they shall meet in the District and perform such duties as provided by the twelfth article of amendment.
Section 2. The Congress shall have power to enforce this article by appropriate legislation.
In authorizing the creation of a federal district as seat of government, the Framers made no provision for the suffrage rights of persons who resided there. This amendment for the first time, effective with the 1964 election, gave District of Columbia residents the opportunity to vote for three presidential electors. Source: U.S. Senate
Although New York was the nation’s capital when the Constitution was ratified, the capital moved to Philadelphia in 1790 for ten years.
In 1800, the District of Columbia became the official seat of government. When first established, the town had a small population of only five thousand residents. As a federal territory, however, and not a state, the inhabitants had neither a local government, nor the right to vote in federal elections. Although by 1960 the population of the District of Columbia had grown to over 760,000 people, and District residents had all the responsibilities of citizenship—they were required to pay federal taxes and could be drafted to serve in the military—citizens in thirteen states with lower populations had more voting rights than District residents.
Passed by Congress on June 17, 1960, and ratified by the states on March 29, 1961, Amendment XXIII treats the District of Columbia as if it were a state for purposes of the Electoral College, thereby giving residents of the District the right to have their votes counted in presidential elections.
Significantly, Amendment XXIII does not make Washington, D.C. a state; it merely grants its citizens the number of electors that it would have if it were a state (but no more than the smallest state). Nor does the amendment provide District residents with representation in Congress (D.C. residents have one non-voting delegate to the House of Representatives) or change the way the District is governed. Congress continues to prescribe the District’s form of government. Source: Annenberg Classroom