"The U.S. Secret Service is aware of the video and investigates anything that can be perceived as a threat toward our protectees," Secret Service spokesman Nate Herring said in a statement.

The U.S. launched what the Trump administration calls "Operation Economic Outcast" against Iran. It includes threats to increase sanctions on Iran's trading partners. The pressure comes as the administration indicates it is trying to avoid returning to war, but cannot overcome Iran's stranglehold over the Strait of Hormuz. Nick Schifrin discussed more with Miad Maleki.