When Morgan formed a coalition government with the Liberal Democrats, Law made no secret of his opposition to the decision and was not retained in the administration. He became a vociferous backbench critic and following his re-election with an increased majority in the 2003 election he stood as candidate for the Deputy Presiding Officer of the Welsh Assembly. However, the Labour AMs voted instead for John Marek who was an Independent AM, thereby ensuring that an opposition member was in the Chair and unable to vote against the Welsh Assembly Government.