January 05, 1859
To the Senate of the United States:
I transmit herewith, for the constitutional action of the Senate, the articles of agreement and convention made and concluded on the 19th day of June last with the Mendawakanton and Wahpakoota bands of the Dakota or Sioux Indians.
JAMES BUCHANAN.
James Buchanan, Special Message Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/202894