However, one of the MSM rags, NY Times I believe, had this same error...Gov Palin riding with her daughter...all you have to do is look at one of umpteen pics to see that it is someone else she is riding behind...one post said it was an employee of HD.
Error, maybe maybe not.
IMO, anyone that says that was Willow does not know the Palins, reads the rags and most likely just wanted to make something out of nothing.