What 3 factors make interest groups successful? why?

A) briefly explain why one of the following best supports the view that slavery largely ended during the civil war before the passage of the 13th amendment. - president lincoln - u.s. congress - enslaved african americans b) contrast your choice against one of the other options, demonstrating why that option in not as good as your choice. c) briefly describe what role, if any, slaves played in the war.