Question: Who was the Chief Justice behind the Supreme Court decision where Robert Cooper Grier served as a juror, which denied a "negro" could an American citizenship?
Sentence (from "Robert Cooper Grier"): However, Grier wrote the majority opinion in the 1863 Prize Cases, upholding Abraham Lincoln’s presidential power to institute Union blockades of Confederate ports and giving the Union Army a strategic advantage in the American Civil War.
Relevant evidence: No