a very Clintonian president who clearly lied about the real Texas-Mexico border
Polk's position was that Texas' southern border was the Rio Grande - the border that had been Texas' as an independent Republic for a decade prior to its annexation. Santa Anna and Lincoln's position was that Texas' border was the Nueces River, and that Texas had not settled on the Rio Grande (aka the Rio Bravo) as its border upon winning its independence. If Santa Anna made that claim he was lying as the treaty he signed after San Jacinto indicates:
"Art. 3d. He (Santa Anna) will so prepare matters in the Cabinet of Mexico that the Mission that may be sent thither by the Government of Texas, may be well received, and that by means of negociations all differences may be settled and the Independence that has been declared by the Convention may be acknowledged
Art. 4. A treaty of Commerce, Amity and limits will be estab- lished between Mexico and Texas. The territory of the latter not to extend beyond the Rio. Bravo del Norte."
- Signed at the Port of Velasco on May 14, 1836 by David G. Burnet, President of the Republic of Texas, and by Antonio Lopez de Santa Anna, President of Mexico
The two treaties of Velasco were negotiated between officials of the ad interim government of the Republic of Texas and Santa Anna, the Mexican dictator and commander of forces, about three weeks after his capture by the Texans at the Battle of San Jacinto.
The "public" treaty, presented below, was to be published and implemented immediately after it was signed. A second "secret" treaty was to be implemented after the terms of the public treaty were fulfilled. In essence, the secret treaty provided for Santa Anna's immediate release in exchange for his recognition of Texas as an independent nation.
However, the treaties were soon violated by both parties. The Texas army blocked Santa Anna's release, as promised in the treaties. Meanwhile, the Mexican government declared void all of Santa Anna's acts while in captivity.
Source: http://shs.westport.k12.ct.us/jwb/Collab/West/Velasco.htm
I ask again. Did you actually read Lincoln's words above? You seem not to have.