The fair use claim here is based on this absurdity: "One cartoon only, a small portion of the entire commercial product."
The cartoon is the entire commercial product.
Start a discussion about improving the File:Dr. Seuss, political cartoon, 1942-03-20.png page
Talk pages are where people discuss how to make content on Wikipedia the best that it can be. You can use this page to start a discussion with others about how to improve the "File:Dr. Seuss, political cartoon, 1942-03-20.png" page.