please explain the causes and consequences behind manifest destiny during the antebellum period. please explain the compromise of 1850 and its significance of the 1850's political climate. explain the causes and consequences of the kansas-nebraska act and bleeding kansas. in your analysis, please include the genesis of the free-soil movement, the pro-slavery movement, the caning of charles sumner, and the freedom fighter john brown. how did john brown's actions help lead the country into a civil war?