It was primarily that "Miners began searching for gold in Indian lands," that caused renewed fighting between Americans and western Indians during the 1860s, although basic issues of expanded white settlement played a role as well.
It switched everything around
I'm thinking that the answer would be that the traders brought Islam to India.
In my opinion, it has made a very “us versus them” look on both sides of the spectrum.
As a political philosopher, Jefferson favored the rights of states and a strictly limited federal government. This vision was contrary to that of John Marshall, who believed in the need for a strong and broad federal government, capable of resolving the conflicts of its people and guaranteeing the rights of its citizens.