Ultimately, Jefferson refused to run for a third term as President, and his chosen successor, James Madison, was elected President. Jefferson was happy to leave the presidency and never returned to Washington.
Unfortunately, the United States was soon drawn into another conflict with Britain by 1812. The entire purpose of the Embargo was to demonstrate that there was potentially a new way to respond to aggressive warring European powers. That effort failed. Jefferson proved incapable of limiting smuggling by Americans that undermined his Embargo. Even though Southerners typically respected the Embargo, the failure to limit smuggling in the North hobbled the Embargo Act. Jefferson had essentially achieved all of the legislative goals he sought to accomplish during his Administration and the Embargo Act was one of his few clear failures.