Video: Contessa Brewer Cuts Off John Ziegler's Mike

... and I bet that's not all she wanted to cut off.

Conservative blogs are all over this video of John Ziegler on MSNBC with host Contessa Brewer, regarding David Letterman's recent despicable attacks on Sarah Palin ...

To be sure, MSNBC has a liberal bias. I was on just yesterday, so I should know. And many of the points Ziegler raised were actually quite good.

But none of that changes the fact that he behaved like a first-class jerk.

At this point, I'm sure my conservative friends are thinking that Ziegler was right to go on the offense because, after all, liberals are always pushing us around, so why not push back? And I'm sure some are applauding Ziegler for taking on Brewer and the evil MSNBC.

It's just that there is a way to do it, and there is a way not to do it.

Conservatives should always strive to be professional -- even while utterly destroying our liberal opponents' arguments. We should not let our dislike of the liberal media blind us to the fact that Ziegler behaved rudely.

And when we support someone just because they are our enemies enemy, we then are tarnished when the person we are supporting turns out to be not so terrific.