One main reason why John C Breckenridge supported the purchase of the Louisiana territory was because he thought it would held end the issue of slavery, by leaving it up to "popular sovereignty" in the new territory.
After the war, Kennedy represented the Massachusetts's 11th congressional district in the U.S. House of Representatives from 1947 to 1953. He was subsequently elected to the U.S. Senate and served as the junior Senator from Massachusetts from 1953 to 1960.
Answer:
number three
i believe it to be the answer
C because the rest of them are not valid
I believe it was because, that was such a great victory for the colonists over the British that after it was all over, everyone had heard about it. Hope this helps.