Will sewage in the Thames hurt the Tories? The view from Henley and Thame – video

In the run-up to July's general election, the Guardian video team is touring the UK looking at the issues that matter to voters. After swimmers and rowers fell sick from sewage discharges into the River Thames we went to the seat of Henley and Thame to see how environmental concerns rank for voters in a seat that has been Conservative for more than 100 years