FDR was effective at getting himself elected to office. Double-digit employment persisted until the Second World War, which the US only entered during his third term. It's a great political achievement to get elected to a third term as President despite unemployment remaining above 10% for the entirety of your first two terms, but that doesn't erase unemployment remaining above 10% for the entirety of FDR's first two terms.
Yeah, FDR was so effective that when the supreme court ruled his actions unconstitutional, he threatened to pack the court with his own appointees and now there are practically no limits on what the federal government can do.
