Obama is by far the worst president in this nation's history.
He certainly has turned out to be a disappointment, but worst president in the nations history? Na thats a split tie between Nixon and Bush Jr with Bush tipping the scales due to having the lowest IQ of any president in the known world.
I am not a fan of the younger Bush, but the IQ thing is a myth. The difference between Obama and Nixon is that Watergate didn't kill anyone.