The round of national surveys taken after the third presidential debate indicates that the polls are not going to give us a clear picture of who will win the election until the final days of the campaign, if then. This is not because polling no longer works — it’s because voter opinion is highly unstable. While many Americans are strongly committed to re-electing President Bush or getting rid of him, there remains a relatively large bloc of swing voters who are critical of the president but who still cannot comfortably back Senator John Kerry.
