Special Message
12/28/1842
https://www.presidency.ucsb.edu...
I feel it to be my duty to communicate, for your consideration, the rejected treaty.
I have great pleasure in submitting to the Senate, for its ratification and approval, a treaty which has been concluded ...
It is only after acquiring Texas, that the question of boundary can arise between the United States and Mexico.
I regard the question involved in these proceedings as one of vast magnitude.