The chancellor and transport secretary both promised tax cuts in a bid to exploit divisions with themselves and Rishi Sunak, the front-runner to succeed Boris Johnson. The former chancellor believes taxes can only be cut when the economy improves, warning Tories not to believe “fairytale” promises of higher spending and lower taxes. Zahawi, 55, who will launch his campaign on Monday, claims the Britain he knew was “full of boundless optimism and opportunity” under Margaret Thatcher is lost and “needs change”. He added: “My goal is simple: to offer the opportunities that were given to my generation, to everyone