I would say PPP is a corrupt Dem group. But all pollsters are corrupt this go around, other than Gallup and Rasmussen.
http://en.wikipedia.org/wiki/Public_Policy_Polling
“RealClearPolitics, which collects and summarizes information from many polls, marks P.P.P. as democrat-leaning.[7]”
Since RealClear Politics is HARDLY conservative, this is interesting.