Why won't people consider sending United States troops to integrate local school an action that goes against the principle of federalism?

If a state actively opposes the use of federal troops, as several governors indicated on Monday that they would, the law might still allow it in certain cases, according to a 2018 report by the Congressional Research Service. One of the main exceptions is when a state is violating people's civil rights.

Explanation:

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answer; (d) i believe that the correct answer is americans finally ran out of ammunition;