Due to his efforts on behalf of missouri, henry clay became known as the “great debater.” the “leader of congress.” the “great compromiser.” the “slavery supporter.”

The correct answer is: "the Great Compromiser.”

Henry Clay (1777-1852) was known as The Great Compromiser due to his crucial participation in the issuing of the Missouri Compromise in 1820, that ended a sectional crisis over slavery.

The Missouri Compromise established the incorporation of the state of Missouri to the United States as a slave state, and the simulatenous admission of Maine as a free state, which would keep the balance of power between slave and free states, in other words, between Southern and Northern states in the US.

they believed democracy was worth the fight

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