Ian Bremmer's Quick Take: Hi everybody. Ian Bremmer here and a Quick Take on the assassination of Hamas political leader, Ismail Haniyeh, in Tehran while he was attending the inauguration of the new Iranian leader, Pezeshkian. Almost certainly carried out by the Israelis. This is a big attack. It's an enormous success for the Israeli Defense Forces. It is potentially a very significant escalation in the conflict across the Middle East with a so-called Iran-led Axis of Resistance, of which Hamas, of course, is a core part. Also shows the weakness of the United States in its lack of influence over the Israeli government, over the Israeli military. So an awful lot of moving parts here.