Mojtaba Khamenei, the 56-year-old son of former leader Ayatollah Ali Khamenei, was named as Iran's next supreme leader. Retired Army Gen. David Petraeus offers his thoughts on the latest news out of Iran.

Then, Negar Mortazavi, senior fellow at the Center for International Policy, unpacks how the Iranian public is responding to the new leader and why his selection is a signal that Iran's leadership is digging in against the Trump administration's campaign against it.

And, defense spending expert Mark Cancian estimates the war is costing the U.S. nearly $1 billion each day. He talks about how expensive it could get.

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