To the Senate of the United States:
In reply to the resolution of the Senate of the 7th instant, requesting of me all the official correspondence since the 4th of March last between this Government and its military authorities at Santa Fe or with the authorities of the State of Texas relating to the boundary or occupation of Texas, and the reasons why the judicial authority of Texas has not been recognized by the military authority at Santa Fe, I herewith submit the accompanying reports, which contain the information called for by the resolution.
I have not been informed of any acts of interference by the military forces stationed at Santa Fe with the judicial authority of Texas established or sought to be established there. I have received no communication from the governor of Texas on any of the matters referred to in the resolution. And I concur in the opinion expressed by my predecessor in the letter addressed by the late Secretary of State to the governor of Texas on the 12th day of February, 1847, that the boundary between the State of Texas and the Territory of New Mexico "is a subject which more properly belongs to the legislative than to the executive branch of the Government."
Zachary Taylor, Special Message Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/200477