The main part of Sally Bercow's interview that is going to seriously hurt the Speaker, John Bercow's chances of getting re-elected in Buckingham next year, is her comments on grammar schools.
She says that she and her husband may not send their children to the local grammar schools because she doesn't agree with selective education. Now a fully-fledged "moderate", one must seriously question if her husband holds the same view.
If he does, many in Buckingham will up in arms. Grammar schools, where they still exist, are incredibly popular. UKIP and Nigel Farage being pro-grammar school against an anti-grammar school Tory would be an incredibly easy battle for Farage to win.
The problem now for Mr. Bercow is that even if he does deny that he holds the same view as his wife on grammar schools, many voters in Buckingham will still be wary of his sincerity. Sally Bercow has certainly not done her husband any favours.