How's that VP pick working out for you?

Buried in a CBS story on their latest tracking poll is this gem:

There is evidence that Palin’s presence on the Republican ticket has hurt McCain with some voters. Fourteen percent of Obama's supporters say they once supported McCain, and the top reason given for their switch was McCain's selection of Palin as his running mate.

Call it the Colin Powell effect. Please, please, please select Palin as the 2012 Republican nominee!