Which amendment granted electoral votes to Washington, D.C.?

The 23rd Amendment is the constitutional provision that granted electoral votes to Washington, D.C. Ratified in 1961, this amendment allows the District of Columbia to participate in the presidential election by assigning it a number of electoral votes equivalent to the least populous state, which is currently three electoral votes. This was significant because it acknowledged the residents of Washington, D.C., who were previously disenfranchised in national elections, thus ensuring that they have a say in selecting the President and Vice President of the United States.

The other amendments listed do not pertain to electoral votes for Washington, D.C. The 25th Amendment deals with presidential succession and disability. The 19th Amendment granted women the right to vote, while the 16th Amendment established the federal income tax. Each of these amendments serves distinct purposes within the framework of U.S. constitutional law and does not address the issue of electoral representation for the District of Columbia.