Who wanted to allow slavery in the western territories.?

John Calhoun of South Carolina (the 7th Vice President of the US) was among the Southerners who resisted Northern efforts to introduce abolitionist laws in Congress. He died in 1850, just as the anti-slavery movement was growing.

The Southerners wanted slavery to move to the western territories. They wanted their already booming economy to be spread into the new states. However, they reached conflict with the Northerners who were not in favor of slavery. The Kansas- Nebraska Act allowed the citizens to vote whether or not they were for slavery caused major problems. This increased tensions between the opposing states. Before Abraham Lincoln's election, the country struggled on the issue of secession. When he took office in 1861, things reached their breaking point and the first Southern states seceded.