Khaled Elgindy, formerly at the Brookings Institute and currently Senior Fellow and Director of the Program on Palestine and Palestinian-Israeli Affairs at the Middle East Institute, writes that America's fundamental ambiguity over the Palestinian national cause has been an underlying and unappreciated factor in the failure of Israeli-Palestinian negotiations over the years, in his new book, Blind Spot – America & the Palestinians, From Balfour to Trump. This season of the Tel Aviv Review is made possible by The Van Leer Jerusalem Institute, which promotes humanistic, democratic, and liberal values in the social discourse in Israel.