David Frost and Munira WilsonA Liberal Democrat slammed former chief Brexit negotiator Lord David Frost today by pointing out the real economic impact of the UK leaving the EU.Britain’s economy is floundering right now, so the government is expected to unveil further cuts to public spending in this week’s Spring statement, while also cutting the civil service.Frost, a former Tory cabinet minister, initially tried to blame the UK’s poor economic performance on Keir Starmer.But BBC presenter Jo Coburn quickly suggested the problems could all be traced back to our EU departure – and