Answer:
When the U.S. Supreme Court ruled in the Dred Scott decision that the Missouri Compromise's prohibition of slavery in territories was unconstitutional, an increasingly diverse body of opponents of slavery rallied around the Republican Party.
Explanation:
Answer: Dred Scott argued in the Scott v. Sanford case that, after traveling and staying with his master in a free state, he had been emancipated by that state's laws.
Explanation:
Or A
It's a
it's A
