Welsh Governance

I spent long enough in the Welsh Assembly to feel entitled to express an opinion on this matter. The Secretary of State’s catalogue of success does not include the fact that patients in my part of Wales have to wait five times as long for orthopaedic surgery as patients in England, even though they pay exactly same rates of tax and national insurance contributions. Why will the Secretary of State not give the people of Wales a referendum on what he admits is a major constitutional change? He is proposing to give enhanced legislative status to the Welsh Assembly, so why will he not put that to the Welsh people in a further referendum?