U.S. President Donald Trump's stance on Iran is serious.
Medianews.az, citing APA, reports that White House press secretary Karoline Leavitt stated this at a press conference.
According to her, Iran should not draw wrong conclusions again.
The White House official emphasized that Iran must accept its defeat, otherwise it will face tougher blows.
"Negotiations between the U.S. and Iran continue and are productive," Leavitt added.