David Davis: supreme court may not rule on article 50 until January

Decision early next year could leave government with tight timetable for a vote of MPs before self-imposed March deadlineDavid Davis has confirmed that the government may have to wait until January for a supreme court ruling on whether it can press ahead with the formal process of exiting the EU without a parliamentary vote.The Brexit secretary told the House of Commons that the supreme court would hear the government’s appeal against last week’s high court decision early next month;