zawahiri in afghanistan. happened over the weekend. the news is breaking, confirm now. i can tell you what you may know, the president will be addressing the nation if about 90 minutes. the white house saying president biden will speak out on this. it is a fast moving late-breaking story, and for that reason we go directly to some of our experts on this. kristen welker and retired four-star army general barry mccaffery. wristen, what are we learning from the white house about something that apparently already occurred but is breaking news tonight? it certainly is. first we learned that president biden was going to speak at 7:30 eastern time to announce an operation against a senior al qaeda leader, and based on conversations with two sources familiar with the matter, my colleague and i have been able to confirm that that leader was ayman al zawahiri, the leader of al qaeda, took over after osama bin laden was killed. this is significant. this is a raid that was conducted ov