May 10, 1866
To the House of Representatives:
I transmit herewith a report from the Secretary of the Treasury. in answer to the resolution of the House of Representatives of the 3d instant, requesting information concentering discriminations made by the so-called Maximilian Government of Mexico against American commerce, or against commerce from particular American ports.
ANDREW JOHNSON.
Andrew Johnson, Special Message Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/202145