Summary
A McCain-Palin ad says that Obama was "born of the corrupt Chicago political machine" and implies that the candidate himself is corrupt by association with four local political figures. But the ad’s implication and many of its supporting details are false. In fact, this is a particularly egregious example of ricochet sliming:
William Daley, the first figure mentioned in the ad, is indeed related to the other famous Chicago Daleys, but he’s never been accused of any wrongdoing.