So Hillary's campaign stylist apparently leaked to the NYT she wore a white pantsuit to her convention as homage to the democrat female politician, Geraldine Ferraro, who'd also worn white. I was asked why I wore white, too. For the record - I wore it in '08 because it was the outfit with no baby barf encrusted on the shoulder.
Nobody ever asked Sarah why she wore white, she is still trying to make her self be relevant.
Here are the few times Sarah has worn white and she does not look good: