In a letter to the Daily Telegraph, Sir William Cash MP, wrote:

SIR – Tim Stanley’s article about Ukip states that the party “completed its mission of winning a referendum to leave the EU”.

“Of course, it was the British people who won the referendum. Furthermore, it has been won over the 25 years since the Maastricht referendum campaign through the determination of Conservative backbenchers who took on the establishment, the Government and the European Union, assisted by some principled Labour backbenchers. Together they fought the battles in Parliament, including on the EU Referendum Bill itself.” Please read the letter here.