by Andrew Kohut, President, Pew Research Center
Special to the New York Times
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.