Again, like W. you screwed up, if you stayed in Afghanistan and got Bin Laden, the world and America would of won out, but W. decided he was going to Iraq.
All of America and the world saw the mistake, as for Republicans like yourself, the mistake kept multiplying, just how many Americans have to die and come home with lost limbs before you admit you screwed up.
Just like Vietnam, the Iraq war was a mistake from day one, and it will always be.
You are right, political thinking can screw up anything, especially alot of Americans who fought and made the ultimate sacrifice, But then when did a Republicans ever take responsibility for a bad decisions.