I’m not sure, but this should help you a little bit.
“The Immigration and Nationality Services of Act of 1965 was a turning point in United States policy regarding immigration. While changing previous legislation that functioned on a rigid quota system, the Act of 1965 gave preference to refugees and families, removed quotas from countries in the Western Hemisphere, and based entry to the United States on levels of skill. In forty years since, the foreign-born population of the United States has tripled in number, now prompting new legislative debate.”
<span>This is of course somewhat of a subjective question, but in general most would agree that in general expansion was not justifiable since the Mexicans and Natives were doing nothing to provoke the US. One could argue it was justifiable since Americans needed more land. </span>
Answer:
Nullify: To invalidate
Popular Sovereignty: People should be able to vote
Sectionalism: Concern for ones region
State Rights: States should hold the most political power
