Trump says Iran is “completely defeated,” expert says mixed messages may be signaling “desperation”

President Trump is again claiming that Iran's military has been defeated, despite the U.S. and Iran trading attacks following the downing of an Apache helicopter near the Strait of Hormuz. CBS News' Olivia Rinaldi reports, and national security contributor Joseph Zacks joins with his takes on Iran's military capacity and the Trump administration's messaging on the war.