The Secret Service Is Investigating Jake Sullivan's Intruder

The Ukrainian capital was hit by a Russian missile attack that the head of the Kyiv city military administration said was “exceptional in its density, with the maximum number of missiles in the shortest time possible.” Ukrainian officials say air defenses destroyed most of the missiles and drones. Retired Gen. Wesley Clark tells Anderson Cooper if he thinks the Russians have enough supply to keep firing these missiles in these attacks.

Plus, CNN Chief Medical Correspondent Dr. Sanjay Gupta joins AC360 to discuss what researchers are calling a “major clue” in their work to unlock the secrets of Alzheimer’s disease.

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