Which Constitutional Amendment allows residents of Washington D.C. to vote for president?

The Twenty-Third Amendment to the United States Constitution is significant because it grants residents of Washington D.C. the right to vote in presidential elections. Ratified in 1960, this amendment recognizes that while Washington D.C. is not a state and does not have representation in Congress in the same way that states do, its residents should still have the opportunity to participate in the electoral process for president. By allowing them to vote for electors, the amendment ensures that the voices of those living in the nation's capital are included in this crucial civic duty. This was a landmark change indicating a growing recognition of the rights of the residents of the district, which had been historically disenfranchised regarding federal elections.