When will liberals get honest?

http://www.motherjones.com/kevin-drum/2012/05/negative-campaigns

I'm familiar with Kain's writing. It's has always been marked by a subtle, intellectual dishonesty. This ariticle at Mother Jones is that, and it's also unintentionally humorous, mainly because half-way down there's a rotating MSNBC ad highlighting the likes of Ed Schultz and Chris Matthews, after Kain has written this:

Certainly politics brings out the worst in people, and it brings out the very worst in our political leaders. In a democracy, this is on constant, gaudy display, becoming only more pronounced in the Fox News era, in which "organic" grassroots movements like the Tea Party are fertilized by talk radio and cable television and the blogosphere.

It's funny that Kain mentions Romney, the Republican primary, the Tea Party and Fox News regarding negative campaigning while failing to mention Democrats, Obama (except to say that Obama sat out the negativity in the GOP primary), MSNBC and the worst purveyors of negativity on tv, Matthews, Schultz and the rest of the MSNBC gang.

It's this type of mealy-mouthed capitulation to politically correct group politics and partisan dishonesty that's destroying credibility among modern liberals. If you're going to discuss negative campaigning then include both parties, because it's the Democrats who are going negative with the most vigor right now, and to ignore their contribution is incredible. But this is Mother Jones, so I understand -- who would expect objectivity?