Donald Trump has threatened to declare Iran in violation of the landmark agreement next month, which could pave the way for additional U.S. economic sanctions against the Islamic Republic.
Iranian leaders have accused Trump of trying to sabotage the deal in which Iran agreed to shelve its nuclear program in exchange for relief from international sanctions.
"Every day they (American officials) play a new trick or expose a new side of their viciousness,” Ayatollah Khamenei said at a graduation ceremony at a police academy, Mehr News reported.