I thought Clinton in his first term was a terrible President. He moved up in the second term because he figured out it was a good move to work with the republicans in his second term.
Obama how much time do you need to know he was a waste.
In the short time he had, he did a lot to shape the future. For me the worst President we ever had would be James Buchanan. Along with LBJ, Hoover, Harding, Carter, W. Bush, and Andrew Johnson.