A pretty good sign of media bias

Granted it involves a mere two major newspapers and editorial positions, but Power Line provides the details that end up with this capper:

So the (New York) Times, like the Star Tribune, is in favor of the filibuster when the Democrats are in the minority in the Senate, but opposed to it when the Republicans are in the minority. That's an easily understandable position. It would be nice if these papers, and hundreds of others like them, would come out and say--just one time before they sink beneath the waters of Chapter 11--that they are shills for the Democratic Party, and their editorials are paraphrases of faxes they get from the Democratic National Committee. Would that really be so painful? After all, it's not as though they're fooling anyone.

Indeed, the drift in principle is rather difficult to understand minus a significant ideological bias.