The families of hostages held in Gaza and their supporters are launching a four-day march from southern Israel to Jerusalem to demand their loved ones be set free. The march comes as negotiations are underway in Qatar to bring about a deal between Hamas and Israel that would lead to a cease-fire in exchange for the release of hostages. U.S. President Joe Biden has said such a deal was at hand but officials from Israel and Hamas were skeptical of his optimism. Negotiators from the U.S., Egypt and Qatar are working on a framework deal under which Hamas would free some of the dozens of hostages it holds, in exchange for the release of Palestinian prisoners and a six-week halt in fighting.