Former Prime Minister Boris Johnson was speaking at the Carlton club, the Conservative party's spiritual headquarters in Mayfair, where he unveiled a portrait of himself. The Conservatives must make the case "for a low tax global Britain" and fight the next election on a pledge to cut taxes, Mr Johnson said on Tuesday night, as he forecast a Tory recovery in the polls. Mr Johnson also urged Prime Minister Rishi Sunak to press ahead with a new law to override the Northern Ireland Protocol and resolve the Brexit impasse in Northern Ireland. Subscribe to The Telegraph with our special offer: just £1 for 3 months. Start your free trial now: https://www.telegraph.co.uk/customer/... Get the latest headlines: https://www.telegraph.co.uk/ Telegraph.co.uk and / telegraphtv are websites of The Telegraph, the UK's best-selling quality daily newspaper providing news and analysis on UK and world events, business, sport, lifestyle and culture.