The death of Hamas leader Yahya Sinwar marks a potential turning point in the Middle East. The Biden administration's cautious optimism reflects the delicate balance between hope for peace and the complex realities of Middle Eastern politics. The coming days and weeks could determine not only the immediate fate of the Israel-Gaza conflict but also the long-term trajectory of American influence in one of the world's most volatile regions. Anthony Adragna from POLITICO reports on the latest.