He decides to almost declare war on Iran through Twitter...
(Iran President): America must understand that war with Iran is the mother of all wars and peace with Iran is the mother of all peace. (Message to Trump) "do not play with the lion's tail, because you will regret it eternally."
Trump's tweet comes after US SOS Mike Pompeo blasted Iran for basically doing what our own government does (the leaders use revenue money to line their pockets and fund terrorism. Then he says their level of wealth and corruption is like the mafia...again, basically what our own government does).
(Trump): To Iranian President Rouhani: NEVER, EVER THREATEN THE UNITED STATES AGAIN OR YOU WILL SUFFER CONSEQUENCES THE LIKES OF WHICH FEW THROUGHOUT HISTORY HAVE EVER SUFFERED BEFORE. WE ARE NO LONGER A COUNTRY THAT WILL STAND FOR YOUR DEMENTED WORDS OF VIOLENCE & DEATH. BE CAUTIOUS!