Sir – Sally Copley (Letters, January 15) writes that a vote in Oxford West for a minority party, the National Health Action (NHA) party, is a wasted vote.

Whether Labour or Conservatives win in May 2015, it is unlikely that either will represent much more than one third of the electorate, in other words minorities.

In contrast most voters in the UK are in favour of the NHS. A vote for the NHA party is a vote for the NHS, supporting a clear majority.

The NHA party is the only true majority party. No vote cast in its favour will be wasted since it will signal to Westminster that politically-driven mismanagement of the NHS is not acceptable, that the world has moved on and the nation demands better.

It is time to save the NHS from the destructive consequences of our obsolete non-democratic political system: the privatising depredations of the Tories, the awesomely expensive mismanagement of the Labour Party and the weak prevarication of the Lib Dems (who failed to block the unworkable Lansley reorganisation).

A first-past-the-post, two-party system is yesterday’s story. It is time to build a genuinely democratic system that offers real choices to voters, for what truly matters to most of them. The NHA is saving the NHS but can also spearhead this much-needed constitutional change.

I can think of no more constructive way to vote this May than voting for Helen Salisbury, NHA party candidate for Oxford West and Abingdon.

Professor Chris Redman, Founder and previous director of the Silver Star Unit of the John Radcliffe Women’s Hospital, Oxford