Speaking tactically:
We have wonderful armed forces. They are up to any challange we set before them. Show them an enemy and we will defeat them. I am hugely proud of them. Great boys and girls! We owe them more than we can ever repay. [deliberately leaving alone a cheap shot about veterans benefits]
There are no military threats in Iraq that our forces can't defeat. When opposed in a fire fight, we will win.

Speaking strategically:
Winning a battle, killing a leader will not make future battles unnecessary. There is an unlimited supply of guys who hate us, there. The more of them we kill, the more they are motivated to attack us, and the more of them will be attracted to the region from other parts of the world. Sadr isn't the last.

Folks who say that "this is all part of my inscrutable plan and only shows how we are winning handily", are full of shit.