Not that I'm aware of. I think Research 2000 is actually a republican leaning pollster.
Incorrect. Research 2000 is an independent polling firm that has been hired by a bunch of media organizations over the years, but has been doing a lot of recent work for Daily Kos, which is the furthest thing possible from a Republican-leaning website.
For the record, Del Ali, the lead guy at R2K is a decent pollster, with long standing democratic roots. A mild lean to the Democratic side.
DailyKOS, is, well DailyKOS