In 1849, America had grown to 15 slave states and 15 free states. The balance in Congress had been kept using the Missouri Compromise since 1820. California is now asking to join America, but as a free state. The problem is that some of California is below the Missouri Compromise line . Northern states argue that because most of the state is above the Missouri Line it must be a free state. Fighting in Congress erupts and to avoid the 15 southern states from leaving America and forming their own nation, the North will get California as a free state, the largest slave market in America. the new territories called "Utah" and "New Mexico" do not have to abide by the Missouri Compromise so they can vote for themselves whether they want slaves or not, and Texas will get $10,000,000 in exchange for New Mexico's rights.