Folks - try to see these things as artifacts.

The artifact “Van Jones signed a Truther petition” has little verifiable factual basis. Only two parties can verify it - Van Jones and the Truthers. Regarding that artifact, if Van Jones denies it then it should not be admissible to Lizard Court on the basis that the Truthers are willing to testify that he did.

That artifact is dead. That doesn’t mean that Van Jones is off the hook for being an asshole on a whole lot of other fronts - like his “apology” for past statements which “might have offended”. Signature apology of an asshole.