The leaders of Britain and the United States had announced a deal last month, but it had not been clear when their agreement would go into effect. Britain hailed the announcement as “a huge win.”

President Trump and British Prime Minister Keir Starmer said they had signed a trade deal that the leaders had agreed to last month. Trump said the relationship with Britain was "just fantastic," as he stood to Starmer.

President Donald Trump and Prime Minister Keir Starmer said Monday that they are signing a trade deal that will slash tariffs on goods from both countries. The deal does not include tariffs on steel,