They pull a knife, you pull a gun. He sends one of yours to the hospital, you send one of his to the morgue. That's the Chicago way!
He might have been born in Hawaii and raised all over, but Obama came up as a politician in Chicago. McCain is growing increasing desperate. He's attacking Obama with vague guild-by-association smears and petty rips on his patriotism and character. So Obama is going to the headwaters of McCain scandal - The Keating Five. Obama very rarely attacks. But his counter-attacks are things of beauty.
Now comes the ugly part.