The interesting point was that all three of them came down to the same bottom line. Krugman wasn't credible because he was a partisan. Krugman wrote articles with a very specific viewpoint, therefore, he couldn't be trusted. One of them accused Krugman of being a liar, but didn't provide any examples, so I didn't bother trying to follow that up.
A short time later, I ran across a piece by a head man of "The Village" (Lefty blogger term for the traditional media press corps), David Broder. Now Broder has been known far and wide for many years as a man of the center, as a moderate, as an objective journalist. Presumably, all three of the right-wingers I was exchanging emails with would have identified Broder as a columnist whose word could be trusted.
In this piece, Broder got very, very angry. He stomped his feet and got all red in the face and accused several Congresspeople:
Broder was angry because the Senators Kent Conrad (D-ND) and Judd Gregg (R-NM) had come up with a useless, silly gimmick of a plan (Yes, President Obama endorsed the plan and commended it in his State of the Union speech) to freeze spending in a few categories. Note that the blame here is bi- or non-partisan. Both Democrats and Republicans are equally to blame. Would the plan have averted catastrophe? Nonsense. But note Broder's paragraph previous to this:
The "need" for a 60-vote supermajority has nothing to do with this being the 21st Century and absolutely everything to do with Republicans putting their party above their country and obstructing absolutely everything. Isn't this obstructionism just a tad, just a smidgen more important than some silly gimmick of a plan? Not according to Broder, but then Broder has to maintain his "centrist" and "moderate" credentials. You see, Republican obstructionism cannot be blamed on both parties. Broder can't float above the conflict and blame both sides, so he can't blame the party that's truly causing gridlock in the Senate and slowing down The People's Business.
What are the consequences of this "centrist" approach? Unfortunately, the public ends up being very poorly informed. Only 32% are aware "that the Senate passed its version of the legislation without a single Republican vote" despite the fact that the public as a whole is very interested in the debate. Again, it's very important to remember that this information blackout is due to the fact that this is a partisan fact. Only one side is to blame. There's simply no way to blame both sides.
So my approach to information is not to say "Who says it?" but to ask "What is the quality of the information?" After all, if Sean Hannity says "The sky is blue and the clouds are white," what are ya gonna say? "Why no, that can't be true, Hannity's a liar"? You'd look like an idiot.