Trump tweets Iran made a "big mistake"
CNN reports tensions between the U.S. and Iran increased on Thursday after a US spy drone was shot down near the Persian Gulf. As national security officials discussed possible responses to the incident, Trump tweeted, "Iran made a very big mistake!" Iran's Revolutionary Guard said it had shot down an "intruding American spy drone" when it entered the country's territory Thursday. Trump has said he is not interested in sending more U.S. troops to the middle east.