[A long-time reader who wishes to remain anonymous asked us to post the following excerpt from a Joe Klein column in Time magazine. -Ed.]

This is not the first time this kind of free-range lunacy has been visited upon me. Indeed, it happens, oh, once a week to each of us who post on Swampland (Karen Tumulty, Jay Carney and Ana Marie Cox are the others). A reasonable reader might ask, Why are the left-wing bloggers attacking you? Aren’t you pretty tough on the Bush Administration? Didn’t you write a few months ago that George W. Bush would be remembered as one of the worst Presidents in history? And why on earth does any of this matter?

First, let me say that I really enjoy blogging. It’s a brilliant format for keeping readers up to date on the things I care about—and for exchanging information with them. . .

But the smart stuff is being drowned out by a fierce, bullying, often witless tone of intolerance that has overtaken the left-wing sector of the blogosphere. Anyone who doesn’t move in lockstep with the most extreme voices is savaged and ridiculed—especially people like me who often agree with the liberal position but sometimes disagree and are therefore considered traitorously unreliable. Some of this is understandable: the left-liberals in the blogosphere are merely aping the odious, disdainful—and politically successful—tone that right-wing radio talk-show hosts like Rush Limbaugh pioneered. They are also justifiably furious at a Bush White House that has specialized in big lies and smear tactics.

And that is precisely the danger here. Fury begets fury. Poison from the right-wing talk shows seeped into the Republican Party’s bloodstream and sent that party off the deep end. Limbaugh’s show—where Dick Cheney frequently expatiates—has become the voice of the Republican establishment. The same could happen to the Democrats. The spitballs aimed at me don’t matter much. The spitballs aimed at Harman, Clinton and Obama are another story. Despite their votes, each of those politicians believes the war must be funded. (Obama even said so in his statement explaining his vote.) Each knows, as Senator Jim Webb has said repeatedly, that we must be more careful getting out of Iraq than we were getting in. But they allowed themselves to be bullied into a more simplistic, more extreme position. Why? Partly because they fear the power of the bloggers to set the debate and raise money against them. They may be right—in the short (primary election) term; Harman faced a challenge from the left in 2006. In the long term, however, kowtowing to extremists is exactly the opposite of what this country is looking for after the lethal radicalism of the Bush Administration.