December 16, 1868
To the Senate of the United States:
In answer to the resolution of the Senate of the 8th instant, concerning recent transactions in the region of the La Plata affecting the political relations of the United States with Paraguay, the Argentine Republic, Uruguay, and Brazil, I transmit a report of the Secretary of State, which is accompanied by a copy of the papers called for by the resolution.
ANDREW JOHNSON.
Andrew Johnson, Special Message Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/203052