<span>The Louisiana Purchase (1803) was a land deal between the United States and France, in which the U.S. acquired approximately 827,000 square miles of land west of the Mississippi River for $15 million.</span>
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Article One of the United States Constitution establishes the legislative branch of the federal government, the United States Congress. ... Article One's Vesting Clause grants all federal legislative power to Congress and establishes that Congress consists of the House of Representatives and the Senate. - Wikipedia
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maybe by helping I don't really know about this