June 21, 1864
To the Senate of the United States:
I herewith communicate to the Senate, for its constitutional action thereon, the articles of agreement and convention made and concluded at the city of Washington on the 15th instant between the United States and the Delaware Indians of Kansas, referred to in the accompanying communication of the present date from the Secretary of the Interior.
ABRAHAM LINCOLN.
Abraham Lincoln, Special Message Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/202334