Trump's warning to Iran was 'not an empty threat', Leavitt says

Trump's threat that "a whole civilisation will die" unless a deal was agreed has repeatedly come up during this news conference. Leavitt says Trump's message was a "strong threat" but "not an empty threat" against Iran - and ultimately it led Iranian leaders to agree to a deal. She is then asked about Nato's role in the conflict. "Nato was tested and they failed," Leavitt says, directly quoting President Trump. She adds that it's "sad that Nato has tu