Trump confirms Iran shot down helicopter, says U.S. 'must' respond

President Donald Trump speaks to the press before boarding Air Force One prior to departure from John F. Kennedy International Airport, in New York. SAUL LOEB/AFP/via Getty Images hide caption toggle caption SAUL LOEB/AFP/via Getty Images President Trump said Tuesday the U.S. "must" respond to the Iran attack that downed a U.S. helicopter. He said the two pilots were unharmed and safe. …