Also speaking in the debate, Plaid Cymru peer Lord Wigley said that the government had promised to press ahead with Silk commission recommendations, and he told peers the Welsh public wanted further powers so it was time to "get on with it".

BBC: Devolution in Wales debate

By sending a letter to the Chancellor calling on him to press ahead in full with the Silk Commission recommendations, any ambiguity - if there was any - about how far the Welsh government wants to go with devolving tax and borrowing powers is removed.

BBC: Carwyn and George: the odd couple