"Manifest Destiny was a powerful force in nineteenth century America not only calling for the expansion of the nation physically but also for spreading its ideals to more parts of the world. In what ways was slavery both a catalyst for Manifest Destiny and also a challenge for it?" Your answer should look fully at the impact of slavery as both a support for this ideology and in the ways it contradicted it. Your answer should include evidence from various sections of American life such as the economy, politics and society.