David Goodhart argues that our politics is stuck, not for want of clear ideas about what to do, but because of the inability to get important things done.

'Politics has always been about herding cats', he writes, 'but is the current generation of politicians less good at herding? Or perhaps the cats are even less herdable than usual.'

Producer: Adele Armstrong Sound: Peter Bosher Production coordinator: Iona Hammond Editor: Richard Fenton-Smith