Surely by the time any new runway is up and running, and overflying anywhere, any current politicians will be long gone from the scene.
As for the inhabitants of Maidenhead voting in Corbyn's party instead, that is just NOT going to happen ...
according to todays "Times" any decision has been put back until "October at the earliest..."
Well they can't reconvene the Airports Commission crew again for some spurious investigation concerning Heathrow, its members are now a Royal Commission considering the implications of triggering article 50 and have been not to report until after the next general election.