Look at the facts, look at the context, find people involved and info on those people, then make an educated guess. (I think this is correct)
I believe the answer you are looking for is the telescope. Hope I helped.
On this day in 1857, the United States Supreme Court issues a decision in the Dred Scott case, affirming the right of slave owners to take their slaves into the Western territories, therebynegating the doctrine of popular sovereignty and severely undermining the platform of the newly created Republican Party.
Have a nice day :)
Answer:
The source of government power comes from the consent of the people that it governs.
