Peers prepare to push for Brexit bill changes despite PM's Lords appearance

Theresa May’s decision to sit in the chamber during debate seen as a warning to those in the House where Tories do not hold a majoritySenior peers have indicated they will defy Theresa May by pushing for changes to the Brexit bill in the House of Lords, as the prime minister made a highly unusual appearance in the upper chamber to observe the first day of debate.
Gus O’Donnell, the former Whitehall cabinet secretary, and Nicholas Macpherson, the ex-permanent secretary of the Treasury