The level of venom being directed at Nader is actually a corrollary of the intense hatred of Bush.
Years ago, Nader was a Democrat's god. His work, allegedly on behalf of consumers and the environment, was universally cited by the Democrats as what good government or good lawyering was all about. He was every bit as much their hero as Martin Luther King or John Lennon.
But now, judging from that cartoon they are so fixated on "getting" the President that, almost overnight, Nader has gone in their eyes from shining hero of the "little guy" to the moral equivalent of a terrorist bomber...and all because he might get in the way of the man they consider their real enemy.
It almost makes you wonder what will they stop it to get Bush?