King Charles III's four-day state visit to the United States began with a meeting with former President Donald Trump at the White House, amidst growing tensions over Trump's Iran policies. The visit, intended to celebrate the 250th anniversary of US independence, has become a diplomatic challenge for Charles as he navigates criticisms from Trump regarding the UK's stance on the Iran conflict. Despite the warm reception, the backdrop includes heightened security following a recent assassination attempt on Trump. Charles will also become the first British monarch to address the US Congress since his mother, Queen Elizabeth II, in 1991. The visit has sparked controversy in the UK, with a recent poll indicating that 48% of Britons support canceling the trip. As the king seeks to mend relations, he is also dealing with personal health challenges and the implications of his brother's past associations with the late Jeffrey Epstein.