I had a friend who was of the liberal bent. Some years ago I emailed him about how other than politicians who routinely lie about everything, some of my co-workers and I were trying to decide what public figure was the most consistently wrong about everything and I told him I won with Paul Ehrlich. I was trying to see if he would defend Ehrlich. He responded by saying he didn't want me to contact him anymore. Liberals simply cannot stand to have their beliefs challenged.
Yes, I think Ehrlich is the likely winner of the award for The Most Consistently Wrong Lefty.