You be the judge. Answer on the flip!
I know further. . . that we have never dreamt of incorporating into our Union any but the Caucasian race–the free white race. To incorporate Mexico, would be the very first instance of the kind of incorporating of an Indian race; for more than half of the Mexicans are Indians, and the other is composed chiefly of mixed tribes. I protest against such a union as that! Ours, sir, is the Government of a white race. . . .
[I]t is a remarkable fact, that in the whole history of man, as far as my knowledge extends, there is no instance whatever of any civilized colored races being found equal to the establishment of free popular government, although by far the largest portion of the human family is composed of these races. . . . Are we to overlook this fact? Are we to associate with ourselves as equals, companions, and fellow-citizens, the Indians and mixed race of Mexico? I should consider such a thing as fatal to our institutions. . . .
But . . . suppose all these difficulties removed; suppose these people attached to our Union, and desirous of incorporating with us, ought we to bring them in? Are they fit to be connected with us? Are you, any of you, willing that your States should be governed by these twenty-odd Mexican states, with a population of about only one million of your blood, and two or three millions of mixed blood better informed, all the rest pure Indians, [or] a mixed blood equally ignorant and unfit for liberty. . . ?
Answer: It’s an excerpt from John C. Calhoun’s speech on the war with Mexico, January 4, 1848, although you never can tell, can you? (Source: The U.S. War with Mexico: A Brief History with Documents, ed. Ernesto Chavez (Boston and New York: Bedford-St. Martin’s, 2008, pp. 118-120).