Britain should forge closer trade ties with the EU if it wants to reverse the economic damage caused by Brexit, a leading think tank has warned. The Resolution Foundation , which is seen to have views aligned with Labour, said a move towards negotiating a return to a single market for goods would be an important step forward, but the party’s manifesto expressly rules that out. It also said the government should slow pay rises in the public sector and repeated its call to scrap the triple lock on pensions. Economists say the hit to the economy since the 2016 Brexit referendum has been considerable, with campaign group Best for Britain claiming damage of between £180bn and £240bn so far. The Office for Budget Responsibility has said that Brexit will cost 4 per cent of Gross Domestic Product in the long term. The report comes amidst turmoil at the top of government , with Sir Keir Starmer’s days as prime minister widely seen as numbered .…