With less than four weeks until Election Day, John McCain has launched his most aggressive ad yet against Barack Obama, labeling him a dangerous candidate because of his association with former domestic terrorist William Ayers. Story here. .

Related: The problems with the Ayers attack/Chris Cillizza, Washington Post; The Obama-Ayers connection/Dick Morris, The Hill

Question: Will this have an effect on the polls that are now continuing to trend toward Barack Obama?

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