House Democratic leadership on Thursday announced plans to force a vote next week on a resolution that would require President Trump to seek congressional authorization to use military force in Iran.Why it matters: The vote has a chance to pass in the House, with even some House Republicans expressing opposition as the White House inches closer to a potential major war in the Middle East.Rep. Thomas Massie (R-Ky.), a staunch anti-interventionist, is leading the war powers effort with progressive...