Jefferson believed in a strict construction of the US Constitution, unless the Constitution specifically granted a power to the government, the power belonged to the people.
Answer: <em>Jefferson believed that the United States needed the Lousiana Purchase, eventhough the cost might be a little bit expensive.
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<em>In 1801, there was a threat coming from the French that if United States did not buy New Orleans from them, they might started a war.
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<em>The United States couldn't have another war, so Jefferson returned with a compromise to buy the Louisiana Territory instead of New Orelans from the French because it benefited the United States and it's people the most.</em>