US President Donald Trump is on a state visit to the UK, meeting with Prime Minister Sir Keir Starmer to discuss investment deals and trade relations. The visit is marked by royal pageantry and aims to strengthen the 'special relationship' between the two countries. Key topics include a significant investment in the UK's AI sector by Microsoft and potential trade agreements. The discussions may also touch on sanctions against Russia and the situation in Gaza, with Starmer hoping to persuade Trump on these issues. However, both leaders face challenges, including questions about Trump's past associations with Jeffrey Epstein.