Keir Starmer has been dealt a harsh blow as research conducted by Labour has shockingly revealed that almost 4,000 pensioners could die if Winter Fuel Payments are cut. The analysis warned Conservative proposals to axe the allowance for 10 million elderly Britons would increase excess deaths by 3,850. Labour’s research, which was published when Sir Keir Starmer was serving as Jeremy Corbyn’s Shadow Brexit Secretary in 2017, also labelled Theresa May’s proposal the “single biggest attack on pensioners in a generation in our country”. The research said: “Since the introduction of the Winter Fuel…