The European Union wants to engage swiftly with the United States over President Donald Trump's planned tariffs, trade chief Maros Sefcovic said on Tuesday, while his boss Ursula von der Leyen stressed the bloc would protect its interests in negotiations.

The president’s threats to slap duties on goods imported from the European Union are part of a pattern of directing the harshest penalties at the United States’ closest allies.

Prime Minister Keir Starmer had hoped to spend Monday marking a new milestone in the UK’s much-promised reset with European Union five years after Brexit. Instead, he received a dramatic reminder of how much harder that will be with Donald Trump back in the White House.