Say it isn't so.
In fact, please tell us all they weren't outright fraudulent like the very brief article here says. It links to The Daily Kos, which I have never done because of the vile nature of the posters and commenters--not because I disagree with them.
I wonder what their first clue was. Was it when every reputable poll would show the Democrat and the Republican neck and neck, and the Kos Poll would show the Dem ahead by 16 points? Was it when Obama's approval ratings were steadily trending downward and the Kos Poll would show them holding strong?
It appears that Kos is doing the only thing HE can do, he blames it all on the polling firm they hired. Apparently it turns out that Research 2000 is a two-bit organization that is running out of a Kinkos "rent-an-office". But I have long contended that the name should have given that outfit away, from the jump. 2000 is the year that every progressive can think of when they want to weep and gnash their teeth. When I put the name with the results of their work, it wasn't hard to discern who was behind this farce.
Most reputable poll aggregates (like RCP) have by now removed the Kos polls from their reporting, as the results will now endanger their analyses and reputations. But all the while, the Kos credibility has been further damaged beyond repair and I suspect that no amount of damage control will be able to salvage whatever minute amount of perceived and dreamed reputation they ever had.
Every dog has his day and the truth eventually prevails.