Donald Trump is the only person who knows his plans for Iran, the White House said, after the US president warned that a "whole civilization will die” if Tehran fails to reach a deal Tuesday.
"The Iranian regime has until 8PM Eastern Time to meet the moment and make a deal with the United States," Press Secretary Karoline Leavitt said in a statement to the AFP news agency, when asked if Trump was prepared to use a nuclear weapon and about reports that Iran had cut off negotiations.
