Boris Johnson arrives in US for talks with Trump team

British foreign minister Boris Johnson arrives at 10 Downing Street in London for a cabinet meeting on October 11, 2016.

Story highlights

  • The UK's foreign secretary is visiting the US
  • Johnson is a former mayor of London

(CNN)UK Foreign Secretary Boris Johnson arrived in the US Sunday for what his office said was a series of meetings with President-elect Donald Trump's closest advisers and congressional leaders.

Johnson, a former mayor of London, became the principle diplomat for one of the US' strongest partners following the narrow success of 2016's referendum to leave the European Union, commonly referred to as Brexit. Johnson was among the referendum's highest profile supporters.