Where Democrats really come from.. :)
The idea the "Bush may attack Iran" kind of jumps right over the constitutional requirement for Congress to declare war. We should never let congress delegate this responsibility to the executive branch EVER AGAIN, which is exactly what a vote to "authorize the use of force is", a delegation of constitutional authority. It's unconstitutional first and foremost, and, it fosters an environment where cowards can make political gain.
I agree it’s the Congress who has that power. One thing I’ve wondered- what if nukes are airborne and about to hit us. Should we gather Congress together to declare war? I think it might be a bit difficult, unless Congress has prepared for such possiblities in advance.