Trump in ‘deciding mode’ on Iran, says ‘very big things’ are coming

Chief foreign correspondent Trey Yingst reports on President Donald Trump's warning to Iran that they 'better behave' as tensions escalate.

Chief foreign correspondent Trey Yingst reports on President Donald Trump's exclusive comments warning Iran that they 'better behave' amid rising tensions. President Trump expresses openness to meeting with the Iranian president but cautions that 'big things' could happen soon if behavior does not change.