Gentlemen of the Senate and House of Representatives:
I lay before you a statement of the Southwestern frontiers and of the Indian Department, which have been submitted to me by the Secretary for the Department of War.
I conceive that an unreserved but confidential communication of all the papers relative to the recent negotiations with some of the Southern tribes of Indians is indispensably requisite for the information of Congress. I am persuaded that they will effectually prevent either transcripts or publications of all such circumstances as might be injurious to the public interests.
George Washington, Special Message Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/200807