John Kerry really is one of Barack Obama’s best attack dogs. His barn-burner on Wednesday excoriated John McCain in a fashion — to quote Yglz — reminiscent of Genghis Khan. Today on Stephanopoulos he went after Sarah Palin only indirectly, keeping his aim on McCain:

The first threshold test of a president of a nominee in choosing a vice president is to prove to the American people that the person that you’ve chosen can fill in tomorrow, that they come with the requisite experience to lead the nation in foreign policy and in national security.

You know, she may be — I mean, I’m sure she’s a terrific person. I’m not attacking her. I think John McCain ’s judgment is once again put at issue, because he’s chosen somebody who clearly does not meet the national security threshold, who is not ready to be president tomorrow.

He also had a terrific statement of support for Hillary Clinton — "Do they think Clinton supporters supported Hillary only because she was a woman. For Heaven sakes, they supported Hillary because of all the things she’s fought for, because she fights for health care, which John McCain doesn’t support; she fights for children and children’s health care, which John McCain voted against; she fights for a windfall profits tax on the oil company, which John McCain opposes." — that frames the Palin pick as a sign of McCain’s cynicism and, yes, sexism. That chair on the seventh floor of the State Department must be looking mighty comfortable.