The new Conservative Government has rather unusually made constitutional reform one of its first priorities but it has had nothing to say about the House of Lords. In one sense this is not surprising as the Conservative manifesto declared that reforming the Lords was ‘not a priority.’ In another sense it is a truly remarkable silence. The election results of 2015 have once again made manifest the absurdity of the composition of our second chamber. The House of Lords currently has 789 Members which makes it the largest second chamber in the world. If the convention to ensure that the composition of the Lords is proportional to voter share in the previous election is adhered to it is about to get bigger. Much bigger.