In its infamous Dred Scott decision, the U.S. Supreme Court found all of the following to be true except: In its infamous Dred Scott decision, the U.S. Supreme Court found all of the following to be true except: The federal government never had the right to limit slavery in the Missouri Compromise Scott had no right to file a lawsuit in the first place The "once free, always free" doctrine in state courts Scott, as a black man, was not nor could ever be a citizen of the U.S.