This bothers me, as well. Doesn't it bother you?
On September 14th, 2001, Congress gave Bush complete authority to deal with the attackers and their ilk as he saw fit, so no, I don't have a problem with it.
I do have a problem with the unelected media looking down their snoots presupposing that somehow their knowledge and judgment superior to the President's.
It's the 'Bush is stupid' argument, and that bothers me.
But Bush won't always be President. A person who can depose foreign leaders by his command alone, using our military forces without a Declaration of war, is an emperor.
The fact that it is Bush vs. Hussein makes the consequences of this deviation from the architecture of a Republic minimal in this case.
When Hillary is President, you may feel differently about it.