The president said a potential arms deal for Taiwan was a “very good negotiating chip” in talks with Beijing. His words raise questions about the steadfastness of U.S. support.

Nobody has yet challenged Prime Minister Keir Starmer for the leadership, but his leading rival, Andy Burnham, finally has a route to Downing Street.

This is the first strike on the service in more than 30 years. It comes after three years of failed contract negotiations, two federal interventions and a volley of last-minute bargaining.