Editor’s note: This article from TLP contributor Steven A. Cook is an extension of the arguments put forth in his excellent new book, The End of Ambition: America’s Past, Present, and Future in the Middle East. Put it on your summer reading list! Over the last few months, President Joe Biden and his advisors have laid out so-called red lines for Israel’s planned-now underway-Rafah operation. First, the administration said it could not support an invasion if the Israelis did not have a credible plan to protect the million or so Palestinian civilians sheltering in Gaza’s southernmost city. When…