March 15, 1870
To the Senate of the United States:
I transmit a report from the Secretary of State, in answer to a resolution of the Senate of the 3d instant, asking to be informed what States have ratified the amendment known as the fifteenth amendment to the Constitution of the United States, so far as official notice thereof has been transmitted to the Department of State, and that information from time to time may be communicated to that body, as soon as practicable, of such ratification hereafter by any State.
U. S. GRANT.
Ulysses S. Grant, Special Message Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/204099