Help Why did Southern states fear Missouri’s entry into the Union as a free state? They wanted to maintain their majority in the House. They opposed equal representation in the Senate. They were on the verge of gaining a majority in the House. They did not want free states to have a majority in the Senate.
Southern states feared Missouri's entry into the Union as a free state because they didn't want the free states to have a majority in the Senate. With Missouri entering as a free state, they would have the majority.