Starmer urges Labour MPs to unite ahead of a Commons vote on referring him to the privileges committee over appointing Peter Mandelson as US ambassador. Ministers court backbenchers and the whip is to oppose a Conservative motion, amid fears a revolt would damage the government.

Gunfire disrupted a high-profile press dinner in Washington. The president was escorted away unharmed and the event halted. A 31-year-old suspect was arrested. Investigators are examining motive and security procedures amid renewed concern about political violence.

The PM reaffirmed that the Falkland Islands are British and that islanders’ self-determination is paramount, after reports that Donald Trump plans to review US backing for the UK’s stance. No 10 said policy is unchanged and dismissed any idea Britain might cede sovereignty.