"Franklin D Roosevelt was so cocking the US economy with ill-thought out interventions that, while leaving gold helped, it didn't actually solve all the problems.
Yes, I know, that's not the way the story is normally told: but Roosevelt's thrashing around extended, rather than solved, the Depression."
This is charitably true if by "thrashing around" you mean "giving in to the conservative pipe dream that a balanced budget makes rainbows and ponies spout from the earth and cutting stimulus in 1937-1938, thus predictably causing a double-dip recession that was later fixed by going back to ignoring the Austerians and actually putting people back to work".
Just as with Obama, the lowest point of his presidency was when he actually did what a Republican wanted. He then learned his lesson, which holds very much true today: ignore the Austerians whose solution to upturns, downturns, and anything in between is to scribble out the Laffer Curve on one more napkin, declare that we're still to the right of the X, and grin as if it isn't the eleventy-fucking-billionth time we've heard that joke.