Indian removal
When Andrew Jackson became president of the United States in 1829, his government took a hard line on Indian removal; Jackson abandoned his predecessors' policy of treating Indian tribes as separate nations, aggressively pursuing all Indians east of the Mississippi who claimed constitutional sovereignty and independence from state laws. They were to be removed to reservations in Indian Territory, west of the Mississippi (present-day Oklahoma), where they could exist without state interference. At Jackson's request, Congress began a debate on an Indian-removal bill. After fierce disagreement, the Senate passed the bill by a 28–19 vote; the House had narrowly passed it, 102–97. Jackson signed the Indian Removal Act into law on May 30, 1830.