January 10, 1860
To the Senate of the United States:
I transmit herewith, for your constitutional action thereon, articles of agreement and convention made and concluded on the 15th day of April, 1859, with the Winnebagoes, and recommend that the same be ratified.
JAMES BUCHANAN.
James Buchanan, Special Message Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/203181