What challenge did congress face in 1850? whether to acquire new western territories whether to sell territory from the mexican cession whether to allow slavery in new territories whether to allow new territories to become states

To sum it down Congress' challenge was whether to allow slavery in new territories, it was so because the southern states had helped drastically in the Mexican-American war and from which they believed they would receive a reward for, Congress ended up splitting have of the new territories into slave states and non slave states.

the tallest building in the western hemisphere and the sixth tallest building in the world