The phrase from the passage that provides context clues for the meaning of the word impetus is "desegregation across the country."
This is because the word impetus is a noun in which the phrase "desegregation across the country," modifies accordingly.
A noun phrase modifier is two or more words that illustrate or describe a noun.
Hence, in this case, it can be concluded that the phrase from the passage that provides context clues for the meaning of the word impetus is "desegregation across the country."
Federalist because that way they could do what ever they wanted with the government because there is no way that they would be opposed by the constitution.
