April 27, 1838
To the Senate of the United States:
I transmit to the Senate, for their consideration with a view to its ratification, a convention between the United States and the Republic of Texas for marking the boundary between them, signed in this city by the plenipotentiaries of the parties on the 25th instant.
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/201445