Launching the Conservative manifesto at the Silverstone motor racing circuit, the Prime Minister positioned himself as the heir to Margaret Thatcher with tax-cutting promises as he sought to overturn Labour’s poll lead which has remained stubbornly at around 20 points. The Prime Minister said the Tories are offering “lower immigration, lower taxes and protected pensions” as part of a “secure future”. Report by Covellm. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn