Actually, the way to bust this open, and to guarantee the election for McCain, would be to have Sarah Palin on for 30 seconds *IMMEDIATELY* following the Obama 30-minute ad buy.
She would say this:
My fellow Americans, there has been controversy over the legal status of John McCain to serve as the next President, given the Constitutional requirements for citizenship.
John McCain has already supplied his.
No other candidate in this race has done so.
Therefore, I have this offer for Senator Barack Obama:
"I'll show you mine if you show me yours."
LANDSLIDE.
Cheers!