Final answer:
Thomas Jefferson had successes in the Louisiana Purchase and the Lewis and Clark expedition, but faced failures with the Embargo Act and managing conflicts with Native American tribes.
Step-by-step explanation:
During Thomas Jefferson's presidency, he had both successes and failures in meeting his goals. One successful event was the successful negotiation of the Louisiana Purchase, which greatly expanded the territory of the United States. Another success was the Lewis and Clark expedition, which explored and mapped out the newly acquired land.
However, Jefferson also faced failures. One example is the Embargo Act of 1807, which was intended to protect American interests but ended up damaging the economy and causing hardship for American merchants. Additionally, Jefferson's handling of the conflict with Native American tribes in the west was not fully successful.
Learn more about Thomas Jefferson's presidency