The reason why we got into Iraq is simple. We thought they had WMD. Every major intelligence agency in the world thought Saddam had WMD. And so we invaded them in pursuit of those weapons. But they weren't there. We toppled their leader, their government, and made their country more unstable. This is the reason why we have to stay in Iraq. We can't just leave when this is our responsibility and let them all kill each other (though they were doing that to an extent before we came too). Until the country, and even the entire region, is stable and functioning, we have to stay in Iraq.

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I find it extremely ironic that many of those who claimed that Bush was the worst president in history claim that Obama is possibly the greatest thing to ever happen. If it is policy you are concerned with, then Obama is simply more of the same. More spending, more deficit, more foreign involvement, more government intervention, and more government regulation. Only a true partisan would claim that Obama represented change as the only change is the party he's from.