Jefferson was a big supporter of the antifederalist ideology. He believed that state governments should have had much more power than the federal government. His belief in state's rights tied in with his belief in individual rights. Just as he believed that individual states should have had more power, Jefferson believed that individual people should have had more power. Because of this belief, Jefferson pushed to allow men who didn't own land to vote
Jefferson believed that the government should stick very strictly to what the Constitution said. He believed in a government with specifically defined abilities and rights. However, despite this philosophy, Jefferson performed the Louisianna Purchase in 1803 even though it is never stated in the constitution that the President has the right to purchase land for the country.
One of Jefferson's biggest accomplishments while in office was his purchase of the Louisiana territory. Even though this purchase went against his philosophy that the government should only act on the rights specifically permitted to them by the constitution, this act went along with his belief in a land-based system of wealth. Jefferson believed that by purchasing this land, he would be greatly increasing the wealth and power of the US. In making this purchase, Jefferson further cemented his name in US history; the Louisiana territory has greatly affected the United States.