What would Churchill have done about Brexit?

I've just completed a book on British Prime Ministers's views on Europe called Half-in, Half-Out, featuring contributions from distinguished figures such as Rachel Reeves, Nicholas Soames, David Owen and others. There are some fascinating insights into Prime Minister's by the people who knew them well. The book is available to purchase here, and you can read my detailed explanation of what we set out to do in writing it in my Times Red Box piece.