Here's another New York Times Op-Ed, this one about an attempt to have the Treaty of Guadalupe Hidalgo nullified. As you may or may not remember from your U.S. History class, that treaty allowed for the taking of almost half of Mexico's territory in 1848, which was turned into all or part of the states of California, Arizona, New Mexico, Nevada, Utah, Colorado, and even a bit of Wyoming.
It was in print in the International Edition of The Times, and online on the Spanish site. Thank you so much to Jim! Pueden leer el artículo en español aquí.