Im still fuming about Tuesday nights attack by Chris Matthews on an Obama supporter. If you missed it, you can watch a clip on YouTube.

Let me provide some context. Obama has just won the Wisconsin primary by a large margin. Theres a big rally down in Houston, and Obama supporter Texas State Senator Kirk Watson is only too happy to appear on MSNBCs coverage of the primary and Obamas victory speech.

Matthew decides to play Hardball. He starts, innocently enough, asking if the Senator was an Obama supporter. Yes, he answered proudly. Matthews then demanded that he name a single legislative accomplishment by Barack Obama. Watson was like a deer in the headlines. He froze. He mumbled. Then he retreated to the familar politicians trick of ignoring the question, and simply saying what he wanted. But Matthews wouldnt let him get away with it, barking - Sir, you have to give me his accomplishments. Youve supported him for president, youre on national television, name his legislative accomplishments, Barack Obamas, sir.

It went on far too long. It was brutal. (Of course, I suppose that depends on your choice of candidates Hillary supporters had to love it.)

Okay. Rewind back to the very beginning of the broadcast. Intro Its MSNBCs coverage of the Presidential primaries€¦with Keith Olbermann and Chris Matthews€¦ Keith speaks first, and is obviously the lead man tonight. Matthews has a scowl on his face, and is obviously in a sour mood as he sits watching Keith continue with the opening dialogue.

The soaring popularity of Keith Olbermanns show, Countdown, has propelled the former sports analyst past Matthews in the MSNBC hierarchy of talent. And its been interesting to watch how Matthews has responded. At first, it seemed to really energize him. Over time he had lost his edge, and had morphed into a compliant, complicit media type - but for the past year or so, hes been back to being much more of a hardballer, returning to the style that made him famous.

But Ive noticed that he rarely picks on anyone powerful. When Matthews wants to play Hardball, he invariably beats up a little guy. Like a state senator. Never a U.S. Senator.

Tuesday nights performance was disgusting. When he asked the question the first time and got no answer, he made his point. But it was obvious that he enjoyed bullying the man, who was clearly unarmed in the battle of wits.

Now interestingly enough, there was also a Clinton supporter being interviewed in the piece. I kept waiting for Matthews to ask her the same question about Hillary. But he never did. I seriously doubt that she would have done any better. She wasnt smart enough to remain silent while her competition was being whipped and self-destructing. Maybe she could have come up with the name of a person whom Hillary got a courthouse or post office named after. Or something about 9/11 assistance. You know the truth is, most of Hillarys legislative accomplishments would hardly be called substantive.

Yeah, but what about Obamas accomplishments?

Here are three substantial examples: The Coburn-Obama Government Transparency Act of 2006; The Lugar-Obama Nuclear Non-proliferation and Conventional Weapons Threat Reduction Act; The 2007 Government Ethics Bill. (Of course, hes written and co-sponsored countless others.)

If youe an Obama supporter, you need to know this in case youre ever confronted by an angry journalist.