I'm a fervent leftist--I don't know if "liberal" is the right word--and I've long since abandoned the notion that US Democratic party is a group that speaks on behalf of my interests.

If it helps, I cherish this clip of Ron Paul and Ralph Nader discussing their similarities: https://www.youtube.com/watch?v=9J3-YoVPckk

That it's on CNN and Wolf Blitzer is just an inconsiderate ass is just the cherry on top to the larger point: you can have people from "different groups" that share some strong ideas. Personally I'd love it if both groups of people concentrated on their similarities over their differences to topple the status quo. After that we can quibble on the smaller issues. A single regime for a considerable length of time is rarely, if ever, a good idea.