Barack Obama’s decision to appear on Fox News Sunday with Chris Wallace (today at 11am/3pm Pacific) has provoked a round of extreme seething among the leftist blogs.

Open Left has Obama figured out; he’s a right-wing undercover operative.

Obama is sucking up to Fox News, and beyond that, the campaign operative who said he would just out and out gave false information.

You can’t trust the Obama campaign, they will lie to you to promote right-wing institutions.

And a Kos Kid swears not to vote for Obama, now that he has Fox cooties on him: Daily Kos: Obama Lost My Vote By Going on Fox.

Obama’s appearance on Fox news was a tactical mistake of massive proportions. In addition, it legitimized the greatest threat to our country — fact free debate. As such, Obama has lost my vote.

Fox News — the greatest threat to our country!

UPDATE at 4/27/08 9:28:11 am:

Another Kos Kid pleads for them to be pragmatic: Daily Kos: This is Who Obama Is.

At the core of Obama’s political philosophy is the belief that real divisions should not stand in the way of conversation. He has always believed that it is right and necessary for us to speak to folks on the other side of the aisle, to speak with our enemies. That to do so is a sign of strength, of problem-solving, and that it can be done without having to compromise any of our own values in the process.

I don’t agree with this strategy. At all. But I respect it. I understand it. And I made my peace with it long ago when I came around to openly supporting Obama’s candidacy at the beginning of the year. For progressives to suddenly complain about this suggests they either haven’t been paying attention to Obama’s core values, or have conveniently decided to only remember them now in order to beat him over the head.

The irony here is completely off the scale. These are people who advocate speaking with our real mortal enemies, enemies who chant “Death to America” and kill American soldiers and civilians, but they’re unyielding when it comes to … Fox News?