Thomas Jefferson, the 3rd President of the United States, was born on April 13, 1743. Jefferson served as minister to France, Secretary of State in Washington’s Cabinet and ran for President for the first time in 1796. He was elected Vice President to his opponent, John Adams, due to a major flaw in the Constitution. It seems that back in the early days, the winner of the presidential election became President, the second runner-up Vice President. You can imagine how that opened the door to all sorts of problems.