During the constitutional convention, the commerce and slave trade compromise gave congress the power to

It places the power of the government in the hands of ther people. Government can only do what the people give it authority to do.

amend the Constitution of the United States with a majority vote

Explanation:

the monroe doctrine is the best known u.s. policy toward the western hemisphere. buried in a routine annual message delivered to congress by president james monroe in december 1823, the doctrine warns european nations that the united states would not tolerate further colonization or puppet monarchs.