Lindbergh running for President in 1932 is news to me, too. Nevermind he was only 30, too young to run, and add to that, I never heard that he was a Democrat. His father, Swedish-born Charles August Lindbergh, was an Isolationist Republican Congressman from MN (although he later became an early leader of the fledgling Farmer-Laborite party) and his father-in-law was the NJ Republican Senator Dwight Whitney Morrow (who served until his death in 1931).
The book The Plot Against America is a novel depicting an alternate history where Lindberg’s kid wasn’t nabbed and murdered and Lindberg ends up running against Roosevelt in 1940. I stupidly referred to it as some non-fictional historical fact. It’s obviously fiction.