Washington: President Donald Trump has played this hand before during the 5-month-old Iran war.
It starts with a grim warning to Tehran that he's on the cusp of ordering U.S. forces to "obliterate" its power plants or seize key parts of its oil industry if its leaders don't quickly agree to U.S. terms to end the war. It ends with him edging away with a last-minute declaration, sometimes at the behest of Gulf allies, that he's going to give diplomacy more time.
