Fans of House of Cards will recognise it immediately. When asked whether he was urging Cantabrians to vote for Green candidate Tony Juniper over Labour’s Daniel Zeichner, Ken Livingstone cannily replied: “If I sit here all night you will not get me to say it. It would make life so difficult.”

Or, as Francis Urquhart would put it: “You might very well think that; I couldn’t possibly comment”

Perhaps even more striking was his reasoning for remaining a member of the Labour Party despite his well-documented disagreements with its leadership and affinity with the Green Party: “We don’t have time to turn the Green Party into a national party for government. You have to ‘green’ all the parties pretty rapidly.”

That’s right: “We.”