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 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,