Mexican people
As originally envisioned, the purchase would have encompassed a much larger region, extending far enough south to include most of the current Mexican states of Baja California, Baja California Sur, Coahuila, Chihuahua, Sonora, Nuevo León, and Tamaulipas. The Mexican people opposed such boundaries, as did anti-slavery US Senators, who saw the purchase as acquisition of more slave territory. Even the sale of a relatively small strip of land angered the Mexican people, who saw Santa Anna's actions as a betrayal of their country. They watched in dismay as he squandered the funds generated by the Purchase. Contemporary Mexican historians continue to view the deal negatively and believe that it has defined the American–Mexican relationship in a deleterious way.