US Presidency
1846

But it would have been still more difficult to justify the Executive, whose duty it is to see that the laws be faithfully executed, if in the face of all these proceedings, both of the Congress of Texas and of the United States, he had assumed the responsibility of yielding up the territory west of the Nueces to Mexico or of refusing to protect and defend this territory and its inhabitants, including Corpus Christi as well as the remainder of Texas, against the threatened Mexican invasion. But Mexico herself has never placed the war which she has waged upon the ground that our Army occupied the intermediate territory between the Nueces and the Rio Grande. Her refuted pretension that Texas was not in fact an independent state, but a rebellious province, was obstinately persevered in, and her avowed purpose in commencing a war with the United States was to reconquer Texas and to restore Mexican authority over the whole territory not to the Nueces only, but to the Sabine.