Since 1930? Seriously, how do you choose? Hoover? Incompetent in general. FDR, the New Deal but at least he had sound war policy. But then, he let Stalin walk all over him at Yalta. LBJ? Oh my... New Deal times 2 plus the misguided ramp-up of Vietnam. Carter? Malaise. And then... we have Obama. Where to start with this guy? Shoehorned in there is an impeachment of William Jefferson Clinton. Good Lord... please help us.