Oh, that's easy..
John McCain had Sarah Palin as her running mate.
Sarah Palin's daughter is engaged to Levi Johnson (piss be upon him).
Levi Johnson dated Kathy Griffin
Kathy Griffin appeared with R. Lee Ermey in Run Jonny Run.
R. Lee Ermey appeared with Kevin Bacon in Murder in the First.
i thought of a shorter route: John McCain to Sarah Palin (running mates) Sarah Palin to Alec Baldwin (SNL) Alec Baldwin to Kevin Bacon (She's Having a Baby)... 3 degrees to Kevin Bacaon haha! this is fun...