To be honest, I did feel like PPP and Quinnipiac polls felt off, especially for Southern states in Quinnipiac's case. PPP I attribute to having a D-bias, but Quinnipiac used to be really respectable. If we go back and look at the cross-tabs, do folks have any idea of where they went wrong? I think we all have a pretty good idea of how the final electorate broke down now so the cross tab comparison could be illuminating.
I didn't think PPP felt truly questionable (regardless of whether they were accurate or not) until after the Selzer Iowa poll came out and PPP almost immediately released another poll that had Biden ahead, which they said they conducted due to popular demand, or something along those lines. It seemed really questionable to me and after that I don't think they should be taken seriously again until they prove themselves reliable.
