I've stated that I'm not a Democrat, and I've stated I'm not (and never have been) an Obama supporter.
I've never said I wasn't a liberal, though.
Then you are a liberal... with no party. I'm working off of the assumption that you aren't a Republican either. So are you a left leaning Independent?
Not the terminology that I would use to describe myself, but it fits, I guess.
I generally don't think to describe my views by voter registration.
Interesting. You are enigmatic then.