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. He instead posted a video at 2:30 a.m. Eastern on Saturday, shortly after bombing began, in which he said that Iran presented “imminent threats” and called for the overthrow of its government. His rationale is dubious, and making his case by video in the middle of the night is unacceptable.