• Theresa May: ‘The next seven days are critical’

The British prime minister, after days of political turmoil, said in a TV interview that she would head back to Brussels this week and European leaders are scheduled to discuss a draft Brexit agreement on Sunday. But anything can happen before then to upend the process.

The deal, though reluctantly approved by her cabinet last week, prompted widespread criticism in Britain and looks unlikely to get a sign-off from Parliament. Above, anti-Brexit protests in London.

Mrs. May now faces a series of threats at home:

→ A leadership challenge: A secretive panel called the 1922 committee, helmed by Graham Brady, has been collecting letters from members of Mrs. May’s own party stating they’ve lost confidence in her. If the committee receives 48 letters, it can trigger a no-confidence vote.