Former CIA Director David Petraeus: I was surprised Alexei Navalny lived for as long as he did

David Petraeus, retired four-star Army general and former CIA director, joins 'Squawk Box' to discuss news of Russian cyber spy operation targeting the U.S. and Europe, death of Kremlin critic Alexei Navalny, state of U.S.-Russia relations, Russia's invasion of Ukraine, and more.