Hugo Swire sent a rather whining letter to the Express and Echo complaining that the Electoral Reform Society had made a mistake and so East Devon is NOT a marginal seat but a safe seat and it is HIS safe seat, so there!
Had he read on further in that post he would have seen them say this about safe seats:
“Safe seats are the 21st Century’s rotten boroughs. The average constituency last changed hands between parties in the 1960s, with some super safe seats having remained firmly in one-party control since the time of Queen Victoria.
The majority of seats can be predicted because of Westminster’s broken First Past the Post electoral system.
As consituencies are small and only elect one MP, rival parties often don’t stand a chance of winning in hundreds of seats across the UK. Even if they have significant support it counts of nothing if they lose. As the loss of safe seats is rare, parties target their resources on a small number of floating voters in marginal seats – meaning they give up on millions of voters across the country.