Depending on what polls you read, the numbers suggest that Democract Barack Obama is favored over Republican John McCain. But with three weeks to Election Day, do these polls really indicate what will happen come November 4, 2008? Is the Bradley Effect a legitimate concern? Is the youth vote being underestimated? The Takeaway looks for a reality check on polls. Guest: J. Ann Selzer, President of Selzer and Company Inc. Her polling results for the Iowa caucuses, both the Democratic and Republican, were spot on. Her news polls show Obama farther ahead than others.