To the Senate and House of Representatives of the United States:
I herewith communicate to Congress copies of a letter from the governor of Iowa to the Secretary of State and of the documents transmitted with it, on the subject of a dispute respecting the boundary line between that Territory. and the State of Missouri. The disagreement as to the extent of their respective jurisdictions has produced a state of such great excitement that I think it necessary to invite your early attention to the report of the commissioner appointed to run the line in question under the act of the 18th of June, 1838, which was sent to both Houses of Congress by the Secretary of State on the 30th of January last.
M. VAN BUREN.
Martin van Buren, Special Message Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/200558