Hurricane Katrina ravaged New Orleans more than three years before President Obama took office—but even so, 29% of Louisiana Republicans say in a new poll that they think Obama was more to blame than then-President George W. Bush for the poor federal response to the disaster. Another 44% say they aren't sure which president is more responsible. Just 28% said Bush was more to blame than Obama—who was, at the time, a freshman US senator in Illinois. The survey was taken by Public Policy Polling, which, Talking Points Memo points out, leans left. (More Hurricane Katrina stories.)