Question: Botiller v. Dominguz was a decision by the United States Supreme Court that dealt with a region of the southwestern United States that was the third largest acquisition of territory in US history, with what being the largest? 
Sentence (from "Mexican Cession"): It had not been part of the areas east of the Rio Grande which had been claimed by the Republic of Texas, though the Texas annexation resolution two years earlier had not specified the southern and western boundary of Texas.
Relevant evidence: No