Witkoff acknowledged that, at this point, he is unsure how the negotiations will achieve the Israeli and US redline of Hamas having no role in Gaza's governing structure. White House Envoy Steve Witkoff may travel on Sunday to either Doha or Cairo, where Israel is sending a team to resume hostage and ceasefire negotiations again should the talks go positively, he said Tuesday night in Washington at the American Jewish Committee's launch of its Center for a New Middle East.