Did FDR End the Depression?
In a word: No.
Franklin Roosevelt assumed the Presidency in March of 1933. The National Bureau of Economic Research dates the end of the Great Depression as March of 1933. The notion that FDR had anything significant to do with ending the Great Depression is just a myth.
Of course, by the same data the idea that FDR prolonged the Great Depression is also clearly false. Why? The Great Depression ended pretty much when FDR became President. If he prolonged it, it was a matter of days nothing more at best.
Another way of putting it is that the economy during the Great Depression probably started to grow on its own and the limited policies of Herbert Hoover were of little significance. I think this maybe the case this time around as well, although we aren’t in a depression (at least not many think this yet). The stimulus spending will most likely kick in when the economy is already growing and such spending is no longer needed in terms of ending a recession. The Obama Administration will claim credit, and there wont be much way to disprove the claim.