Adams v. Texas, 448 U.S. 38 (1980), was a United States Supreme Court case in which the Court held on an 8–1 vote that, consistent with its prior opinion in Witherspoon v. Illinois, a Texas requirement that jurors swear an oath that the mandatory imposition of a death sentence would not interfere with their consideration of factual matters such as guilt or innocence during a trial was unconstitutional.