May 05, 1848
To the Senate of the United States:
I communicate herewith a report from the Secretary of State, together with the correspondence "between the Secretary of State and Don Justo Sierra, the representative of Yucatan," called for by the resolution of the Senate of the 4th instant.
I communicate also additional documents relating to the same subject.
JAMES K. POLK.
James K. Polk, Special Message Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/201568