Final details are under wraps but Trump promised the deal provides billions of dollars in access for U.S. agricultural products like beef and ethanol.

Economic analyst Peter Schiff wrote on X: "Investors are excited about Trump's trade deal with the U.K., our first victory in the trade war. The effective tariff rate on U.S. goods entering the U.K. is 0.5 percent. So, from the American perspective, what we stand to win from the deal is relief from Trump's tariffs on U.K. imports."

Trump calls the agreement with Britain “so good for both countries.” It’s the first of dozens of deals the administration wants to make with partners around the world.