You’ve made a solid case here. While it’s valid to be cautious of sources like the New York Post and Fox News, the verification of the image by Reuters and the visible part of the book title make it clear that Biden was indeed holding The Hundred Years' War on Palestine by Rashid Khalidi. The book's critical stance toward Israel is well-documented, and the quote sourced through the Zinn Education Project adds credibility, even if indirectly. Overall, the claim seems accurate, and though the indirect quotation leaves a bit of room for doubt, the visual and contextual evidence strongly support the conclusion.