Shereen Williams:

The challenge that we have in Wales is that whether we go with 600 seats or 650, Wales will take the biggest hit in terms of loss of constituencies. It would mean, I think, a massive change: across the whole country, I cannot guarantee that even seats that fit within the current limits will be able to remain intact. That is the challenge we have in Wales; the 5% does give a very tight range for us to work around.

I think the valleys will present a unique challenge for us, because you do not really want to split a valley and have half in one seat and the other half in another seat. It will require us to look at our building blocks and how we work on that, getting input from local communities and from local authorities—from our stakeholders—and asking, “If we had to go down the route of splitting a valley, what is the best combination to work?” I am aware that we had the exact same problem at the last review.