But Churchill does not hold the record as Britain's most prolific defector, according to a new post by Dr Alun Wyburn-Powell:
This title goes to Edgar Granville, who had five changes of party label to his name. He was first elected to the House of Commons for Eye in Suffolk as a Liberal in 1929. In 1931 he became a Liberal National, but left to sit as an independent during the war, before returning to the Liberals just before the 1945 election.
After losing his seat in the Liberals’ worst general election performance in 1951, he joined the Labour Party. Granville was never re-elected as an MP, but he was created a Labour peer. However, his allegiance to the Labour Party did not last and he ended his days as a cross-bencher.