Good point...it's hard to pick out specific non-elected people on the Left who correspond to the personalities on the Right you mentioned. The Left doesn't really work that way...the influence positions on the right occupied by people like Buchanan or Robertson are occupied by special interest GROUPS on the Left. I may need to give this more thought.

As for Al Sharpton, I comment on him a bit here. While he is definitely a screwball, and is being marginalized by the Democrats now, before the election of 2000 and other elections, Al Gore and other prominent politicians were kissing his ass.