Political Malpractice?

A new McCain ad:

Mark Kleiman is perplexed:

The thrust of the McCain campaign, especially for the past month, has been that Barack Obama is evil and scary: a metrosexual cosmopolitan celebrity who wants to molest your children while his terrorist friends plot to kill you and his homeboy welfare chiselers from ACORN steal elections so they can then steal your money. Now, four days before the election, McCain shows the voters Obama "reaching across the aisle" to praise his rival in his best calm, reasonable, thoughtful tone.

What am I missing here? Is Steve Schmidt in the tank?