The polls are a boost for the Tories, who called on Monday for a public debate on how best to fund the NHS in the 21st century. Writing in a Conservative pamphlet on alternative health systems, Tory leader Iain Duncan Smith declared: 'The system is not working. We need to learn from other countries if we are to improve the health service in Britain. The problems of the NHS are not just a matter of money. It is the system that is failing. Despite increasing taxes by £100bn since they came to office, [Labour] have failed to deliver any significant improvement. Our goal is to make the NHS the best health service in the world. We must have a system based on need, not on the ability to pay, but that need should be defined by patients working with doctors, not by politicians.'