This is the full text of the decision in the U.S. Supreme Court case Dred Scott v. Sandford. Scott, a slave, sued his master for freedom after being taken to live in states where the Missouri Compromise had rendered slavery illegal. On March 6, 1857, Chief Justice Roger B. Taney handed down a 7-2 ruling that Scott did not have the right to file a federal lawsuit because African Americans “were not intended to be included, under the word ‘citizens’ in the Constitution, and can therefore claim none of the rights and privileges which that instrument provides for and secures to citizens of the United States.”