Results since 1997 have been objectively interpreted more marginal majorities for the victor than emphatic (a majority of under 15% may in some circumstances be considered marginal).
2016 EU referendum results The constituency of Carshalton and Wallington is estimated to have voted by a large majority for 'Leave' in the EU referendum, in contrast to the incumbent MP, Tom Brake, who was a high profile proponent of 'Remain' [REF].