US President Donald Trump said on Monday “I will do what I have to do” if Iran does not stick to its agreement with Washington. “If Iran doesn’t live up to their agreement, or if they’re not behaving, I will do what I have to do,” Trump told reporters. Trump and Iranian President Masoud Pezeshkian signed an interim US-Iran deal last week, more than three months after the US and Israel attacked Iran and Iran responded with its own attacks on Israel and Gulf states with US bases.