We are going to see this type of polling until election day: "WSJ/NBC poll: Obama 47, Romney 43." A false picture and here is proof.

The demographic for this survey  giving Obama a five point margin, could have produced no other result: 

 38% of those surveyed were "conservative to very conservative."

By contrast,  59% were "moderate to very liberal."  

or

Democrats 54% 

Republican 36%

Question:  if there are 18% more Democrats than 

Republicans and the Dems win by 5%,  which side 

of the political aisle is the strongest? 


I have run the demographics on an even dozen polls that found
Obama leading Romney by somewhat substantial margin.  In every 
case,  without exception,  the polls were skewed  in the Democrat's
favor by double (at least) the margin of "victory."  

Survey demographics found here.