By Bagehot
ON OCTOBER 24th, it now seems clear that David Cameron will face one of the trickiest votes of his—to date remarkably lucky—career as Conservative Party leader. As mentioned in a previous blog posting on Tuesday, the House of Commons is to hear a backbench motion calling for MPs to endorse the holding of a three-way referendum on Britain and the EU. If carried, the non-binding motion would call on the government to hold a referendum asking voters to leave, stay or seek a loose trading relationship with Europe.