Over the weekend the LibDem by-election candidate Sarah Olney suggested Brexit-backing Zac Goldsmith shouldn’t be Richmond Park’s MP because he “represents a constituency that voted 73% remain in the referendum.” On that logic Nick Clegg should step down in Sheffield, which voted 51% Leave, and Tom Brake should quit in Carshalton (where the wider Sutton area voted 54% Leave). So too should Norman Lamb, whose North Norfolk constituency voted almost 60% for Leave. Will Sarah support removing 40% of LibDems from the Commons as well?