Americans used to be steadfast in their support for Israel. "My first reaction is just, I understand that this has evoked incredibly passionate feelings for Arab Americans, for non-Arab Americans, Jewish Americans," says Jake Sullivan, Biden's former national security adviser. The CIA and the Department of State cautioned against recognising a Jewish state. "There's potential for Trumpian support for Israel to feed a dynamic here that, at least among Democrats, increases criticism of Israel." "And I think younger Americans, including Jewish Americans, are less supportive of Israel than their parents were."