In January 1941 America First advocate Charles Lindbergh testified before the House Committee on Foreign Affairs against the Lend-Lease Bill. Instead, he proposed the creation of a neutrality pact with Germany. After President Roosevelt criticized his views on neutrality as appeasing and defeatist, Lindbergh resigned his commission in the U.S. Army Air Corps.
He likely lived To regret this stance.
Good question, Charlie. Here is what I found on line at:
https://everything2.com/title/Charles+Lindbergh.
There are no references and I can’t vouch for its authenticity.
… for the time that he spent evaluating the German Air Force… Lindbergh was decorated by Adolph Hitler in 1938. Lindbergh… considered the German civilization advanced to that of the rest of Europe… he never recants this view of Germany and the German people.
During World War II, Lindbergh wanted to help out the war effort but was not permitted, based upon his pro-German stance. Eventually … he served as a civilian consultant for an aircraft maker in the Pacific… convinced his supervisors to let him fly … more than 55 missions against the Japanese. Later, he recounted these exploits in a book entitled The Wartime Journals of Charles A. Lindbergh.