Potential consequences are catastrophic. This action is in violation of the explicit Constitutional provision that Congress alone has the power to declare war. That fundamental fact gets barely mentioned in whatever public discourse has taken place.
The termination point of this reckless path to war will find the U.S. despised in the world — whatever the immediate military outcome. At home, the nation will demonstrate once again that it has become incapable of shame, and that whatever self-respect survives will be in the form of that confected adulation that egoists apply to themselves.