President Biden was seen holding a copy of the book 'The Hundred Years' War on Palestine: A History of Settler Colonialism and Resistance, 1917-2017' by Rashid Khalidi, which describes Israel as a colonial power. The book argues that the modern history of Palestine is a colonial war against the indigenous population. Biden has previously expressed support for Israel but has been criticized for putting conditions on U.S. aid and pausing shipments of heavy munitions. Pro-Palestinian supporters have criticized him for civilian casualties in Gaza. The book also praises the first intifada by Palestinians against Israel.