Why would anyone take Ed Klein seriously?

Author/gossiper Ed Klein, whose dreadful work in recent recent has been completely discredited, appeared on NPR on Wednesday and claimed that Sen. Ted Kennedy used to love telling Chappaquiddick jokes.

Right-wing bloggers have seized upon the comment (Ah-ha! Kennedy was evil!) and are pretending that because Ed Klein said something about a prominent Democrat it must be true.

Oh brother.

Please do some background reading on Ed Klein and then try to convince me why I should take seriously anything he says or writes about Democrats.