Overview

• Trump and Prime Minister Keir Starmer signed a science and technology agreement as Britain said U.S. companies pledged about £150 billion in investment, including roughly £31 billion targeted at AI, with projects spanning data centers, a supercomputer and a UK arm of the Stargate initiative.
• At a joint news conference, Trump said Vladimir Putin had "let me down" over the war in Ukraine and urged European countries to curb purchases of Russian oil, yet the visit produced few new measures for Kyiv.
• Trump pressed for tougher action on illegal migration in Britain, even suggesting military involvement, and noted a rare policy split with Starmer over UK plans to recognize a Palestinian state.
• The visit was marked by protests as police arrested four people after projecting images of Trump with Jeffrey Epstein onto Windsor Castle; Starmer’s recent firing of ambassador Peter Mandelson over Epstein ties continued to cast a shadow, and Trump said he did not know Mandelson.
• Windsor’s lavish honors and Chequers hospitality emphasized the "special relationship," but talks to lift U.S. steel and aluminum tariffs remained stalled, and the Trumps departed after a helicopter made a precautionary landing over a minor hydraulic issue with no injuries.