He assisted Tennessee to join the Union

Burr was supported by the Clinton family and New York Governor George Clinton when he was elected senator for the state of New York in 1791. Senator Burr was instrumental in Tennessee's admittance to the Union five years later, which is one of the interesting facts about Aaron Burr. The future state's citizens asked Governor William Blount to lead a constitutional convention early in 1796 when it was still regarded as a federal territory. The United States Congress was then presented with a draft of the constitution that had been created in Knoxville.

After reading the text, the majority Democratic-Republican House decided to admit Tennessee as a state. Federalists, who controlled the Senate, slowed the process, and a political impasse resulted. Burr rallied the majority of his colleagues to Tennessee's cause while serving as the manager of the bipartisan Senate committee formed to address this issue. In the end, the committee decided to support the territory's application for union membership. Shortly later, Tennessee was granted statehood by the Senate. On June 1, 1796, it was admitted as the 16th state in the union.

Many well-known Tennesseans expressed their thanks to Burr for his deeds. Governor Blount said, "I pronounce certainly that Mr. Burr... may be placed among Tennessee's closest allies." In 1805, when Burr paid a visit to the Volunteer State, Andrew Jackson hosted him as a guest in his home in Nashville. Old Hickory even urged that Burr move to Tennessee, where both men were fairly well-liked and run for politics there at one time.