Zac Goldsmith’s decision to stand down as a Conservative MP in October over the government’s plans to expand Heathrow has got the left talking about how they can work together – not just in Richmond, but across the UK.

Bright Green’s Josiah Mortimer was in the Richmond Park constituency for the final weekend of campaigning, to speak with the Green Party’s Caroline Lucas MP, Zac Goldsmith, and Lib Dem candidate Sarah Olney about the campaign – and what happens after December 1st.