A reader points out this passage in the new Pew Research “Obama Fatigue” report:

When asked about specific commercials, those tested for each candidate registered about similar recall levels – 41% of Pew’s respondents said they have seen McCain’s commercial that compares Barack Obama to Paris Hilton and Britney Spears. Almost the same number – (43%) report seeing Barack Obama’s commercial where he talks about his background growing up in Kansas.

As mentioned here yesterday, the Kansas part just didn’t happen.