This tweet sums it up well:
This tweet threatens to break several laws. First, the President cannot notify Congress under the War Powers Resolution by tweet.
Second, he claims “[s]uch legal notice is not required.” That’s not true. Any time the president involves the armed forces into “hostilities,” he must–at a minimum–notify Congress within 48 hours. 2/
Third, he is also obligated to “in every possible instance . . . consult with Congress before introducing United States Armed Forces into hostilities or into situation where imminent involvement in hostilities is clearly indicated by the circumstances . . .” under the WPR.
Fourth, he is promising a “perhaps … disproportionate” strike in response–that’s another promise of an international law violation. Any action taken in self defense (the apparent justification for the strikes) must be necessary and proportionate to the threat posed.
That any of this has to be said suggests just how insane this situation has become. Where are the White House, DoJ, DoD, State Dept. lawyers?