1. Dred Scott was not a person protected by the Constitution 2. Slaves are property 3. Property cannot be taken from an owner without due process
Under these three premises, Dred Scott could not be free of a slave owner under any circumstance because he was a slave, therefore not a person but property, and couldn't be taken away unless due process was served on his master.
1. they finally joined the war because Germany embarked on a deadly gamble. Germany sank many American marchent ships around the British isles which prompted the American entry into the war
