The answer is The increased opposition to war.
Nixon was not popular with his foreign policy of war to fight communists. During his term, people held numerous strikes that showed that the people were against its implementation. They don't want numerous soldiers to get involved and suffer. They also don't want people from foreign lands to lose their lives because of this.
A
regulate interstate commerce
This would be true because they have money coming in every month
General Zebulon Montgomery Pike (1779-1813) was a contemporary of Lewis and Clark and he was an early explorer of the territory of Louisiana and the area around the Arkansas and the Red rivers. He also trekked across the Great Plains and the Rocky Mountains, and he published his findings in a book. Pikes Peak, in Colorado, was named in his honor, although he was not able to reach its summit.