Well it's hard to say that it did anything with the Great Depression since that was interrupted by WW II, which is what really got us out of it. But his policies were unconstitutional and only passed because he threatened the Supreme Court, which is also very disturbing. He also put us under a declared state of emergency which has never been canceled since. We've been under an official State of Emergency since March 9. 1933. Of which Congressman James M. Beck said:
""I think of all the damnable heresies that have ever been suggested in connection with the Constitution, the doctrine of emergency is the worst. it means that when Congress declares an emergency, there is no Constitution. This means its death. It is the very doctrine that the German chancellor is invoking today in the dying hours of the parliamentary body of the German republic, namely, that because of an emergency, it should grant to the German chancellor absolute power to pass any law, even though the law contradicts the Constitution of the German republic. Chancellor Hitler is at least frank about it. We pay the Constitution lipservice, but the result is the same....But the Constitution of the United States, as a restraining influence in keeping the federal government within the carefully prescribed channels of power, is moribund, if not dead. We are witnessing its death-agonies, for when this bill becomes a law, if unhappily it becomes a law, there is no longer any workable Constitution to keep the Congress within the limits of its Constitutional powers."
FDR did the most of any President to destroy the Constitution and open up the flood gates for government expansion and usurpation of power.