Last night, a few hours before election day, Sarah Palin released a statement on her health written by her doctor, Cathy Baldwin-Johnson. It is here
The doctor definitively states that Trig is Sarah Palin's biological son.
This is sufficient proof for me that Trig really is Sarah Palin's son.
The unusual circumstances surrounding the birth, such as Palin's hiding of the pregnancy for seven months from family, coworkers and friends, and her 16+ hour travels back to Alaska after her water broke when she gave birth, triggered the speculation.
I apologize for any discomfort that these speculations may have caused Governor Palin. I thank her and her doctor for the release of this summary of her medical condition.
