..Polling samples are skewing results to Obama's favor. Some polls are as much as +15% democrat responders. Also many polls are "registered voters" rather than "likely voters". The latter category tend to vote GOP. Obama leads in skewed CBS poll weighted 13 percent in favor of Democrats - Spokane Conservative | Examiner.com How Biased Are Polls? - Katrina Trinko - National Review Online.. The liberal media and of course the pollsters know they must change the narrative. They know the President cannot run on his record. Polls are being used as a weapon to discourage likely GOP voters to give up and stay away from the voting booth. It will not work.