Africa was rich in natural resources. They wanted to establish colonies in Africa to extract them. There were also other reasons such as, nationalism, missionaries and ambition.
They were of course enraged by the ruling and several political figures and journals vehemently denounced it. However, the most terrifying aspect was, in their view, that this decision was the first in a series of many that would eventually spread slavery to the entirety of the United States, including Free States. Senator Abraham Lincoln even explicitly stated his grave concerns in his House Divided speech of 1858.
Explanation:
it was between aron burr and Thomas Jefferson
It would be the job of the "c. the president of the United States" to uphold the supremacy clause of the United States Constitution, since this ensures the power of the federal government over the states.
