Explain why westward expansion created a clash between sectional interests in missouri

Sectionalism in Missouri wasn't new but as half the state wanted to go west and the other half believed it was not our right to push the natives out any further. religious groups spread the idea of fair treatment for slaves. as more slaves from the south came north at the same time of the expansion, slavery was put in the spotlight and people started to become more sectioned. this eventually lead to the Missouri compromise of the 36/30 line.