Why was the purchase of the Louisiana territory significant for Thomas Jefferson?

Answer 1

For starters, It doubled the size of the United States at the time, and it provided more land. He was already about to send out Lewis and Clark on their expedition, and this was a benefit, because they now owned the land. Also, It gave them the land Napolean and other French might use and had planned on using to attack the US.

Hope this helps.

Answer 2

The Louisiana Purchase doubled the size of the United States. Thomas Jefferson was excited to learn about this new land as well as the people, animals, and plants that were part of it. It also made the United States safer because there was less land for European countries to control.