BYRON YORK: Rethinking Obama’s political performance in Tucson. “By the time he spoke in Tucson, Obama had let four days pass while some of the angriest voices in the media — his supporters — either blamed Republicans directly for the killings or blamed the GOP for creating the atmosphere in which the violence took place. During those four days, the president could have cooled the conversation by urging everyone to avoid jumping to conclusions, as he did the day after the November 2009 massacre at Ft. Hood, Texas. But he didn’t. Only after Loughner’s insanity had been indisputably established did Obama concede that politics was not to blame for the shooting. . . . Some Democratic strategists hope Obama can capitalize on Tucson the way Bill Clinton capitalized on Oklahoma City. Perhaps he’ll be able to, and perhaps he won’t. But he’s already trying.”