Iran's supreme leader Ayatollah Ali Khamenei dismissed US President Donald Trump's aggressive criticism as the "rants and whoppers" of a "brute" in a speech on Wednesday. 

"I don't want to waste my time on answering the rants and whoppers of the brute US president," Khamenei said in a speech to students in Tehran, published on his Telegram channel, in his first response to Trump's bellicose speech against Iran last week