He returned it to the original owners.
Because they didn’t want to divide the country and the south depended on slaves because of the economy
<span>1916, where the Sykes-Picot agreement was agreed upon by the United Kingdom and France, whereas Russia only assented to it. It officially declared and recognised each countries sphere of influence over Southeast Asia and the Middle East.</span>
The Dred Scott decision invalidated the Missouri Compromise. This decision therefore declared the Missouri Compromise to be unconstitutional.