I was wondering the same thing. This appears it could be some type of personnel vendetta. Is it possible their paths have crossed years back and Burkett just hates President Bush?
What I heard on Fox was that Burkett got some sort of illness in Panama when he was on business for the Guard, in the 90s, and that he was refused compensation for his medical care, for some reason.
Then he held then-Gov. Bush responsible, and has been attacking him ever since.