“If he repelled a Martian invasion tomorrow, I’m not sure he’d get to 65%.” –referring to the tiny bounce in the polls that President Obama got after Osama bin Laden was killed

It is worth noting that George Bush Sr. got to 90% approval after the Gulf War & there was probably more ambivalence among Americans about whether that was a good thing than whether killing Bin Laden was. Perhaps a clear measure of how divided and dysfunctional our politics have grown since?