In his 2024 presidential campaign, Donald Trump promised voters that he would end wars, not start them. Over the past year, he has instead ordered military strikes in seven nations. His appetite for military intervention grows with the eating. Now he has ordered a new attack against the Islamic Republic of Iran, in cooperation with Israel, and it is much more extensive than the targeted bombing of nuclear facilities in June. Yet he started this war without explaining to the American people and the world why he was doing so. Nor has he involved Congress, which the Constitution grants the sole power to declare war...