Ranking the leaders who have held the highest office in the United States is a monumental task, but here we dive into it. From the foundational figures like George Washington and Thomas Jefferson to transformative presidents such as Abraham Lincoln and Franklin D. Roosevelt, this list attempts to place them all. We'll consider figures from the early republic like John Adams and James Madison, through the tumultuous eras of Andrew Jackson and Ulysses S. Grant, up to more recent leaders like Obama and Trump. How do the titans of American history stack up against each other? Let's find out.