The King urges Congress to renew US–UK ties, highlighting defence, security, intelligence, trade, tech, science and medicine. He calls for protecting Nato, upholding the rule of law and environmental stewardship, arguing both nations benefit from deeper cooperation.

On a four-day US visit, the King will use quiet diplomacy to urge the President and Congress to stay closely aligned with Europe. A White House meeting opens efforts to warm a strained special relationship and reaffirm Britain’s friendship, with sensitive messages delivered privately.

Charles III’s state visit to the US will proceed with tighter security after an individual was detained near the White House correspondents’ dinner; authorities say the US President and aides were likely targets. Both governments hope the trip will strengthen the special relationship.

Senior ministers are holding private talks on who should urge the Labour leader to step down, as mood around No 10 shifts from optimism to alarm. Calls for him to quit are expected after the 7 May local elections, with debate over sending a single envoy or a delegation.