Because that's apparently where you go when you're forced out of the White House. The only difference being that Rumsfeld resigned in dignity, noting that he had obviously lost the confidence of the American people. Van Jones not so much:

Van Jones, special adviser for green jobs at the White House Council on Environmental Quality, resigned Saturday, following weeks of pressure from the right and a flurry of revelations about his past statements. "I am resigning my post at the Council on Environmental Quality, effective today," Jones said in a statement dated Sept 5 released around midnight on Sept 6. "On the eve of historic fights for health care and clean energy, opponents of reform have mounted a vicious smear campaign against me. They are using lies and distortions to distract and divide," he continued.

In fairness to him, those YouTube videos of his past speeches really were dishonest. How vicious of the right to use them, along with his other past statements, to discover what the media refused to acknowlege even after the controversy broke.

Speaking of YouTube videos and past statements, here are two minutes of Van Jones mocking Rumsfeld for being "out of work" and "serving behind the counter at Wendy's," much to the delight of the assembled sycophants. The full speech is 28 minutes and was posted at the time by these lefties but I took the liberty of clipping it down to the relevant 2 minutes.

If you have time for the full 28 minutes though, it really is a tour de force. Especially striking phrases: "slave ship on dry land," "a new Jim Crow," "you don't have to call someone the N-word if you can just call them a felon," and "in just 24 months 6 years of one party authoritarian rule would be shattered." Also: "you might have to get rowdy, and I understand." A nice juxtaposition with the left's new found emphasis on low-key deliberative dignity.

Anyway, it's not just that he's celebrating the left's victory in a particularly obnoxious way, and it's not even that he had already bonded with the crowd over how Rumsfeld was "at home watching [them] on TV." It's that he's just so pleased with himself about the joke, as if this is the most clever routine ever. The self-satisfaction, combined with the crowd's catcalls, creates a nauseating effect very similar to watching MSNBC anchors nod along to Obama sanctimoniously preaching about Teachable Moments. The great orators of our time, I guess.

Though remind me again - what is it they say about the gods and hubris?