On Sunday night, President Trump tweeted an all-caps message to Iranian President Hassan Rouhani, seemingly in response to a warning Rouhani issued earlier in the day. Rouhani declared during a meeting of Iranian diplomats that "America should know that peace with Iran is the mother of all peace, and war with Iran is the mother of all wars." Trump directly addressed Rouhani in his tweet, saying, "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.