King Charles will meet New York City's mayor Zohran Mamdani at a wreath laying ceremony for 9/11 victims during his state visit to America next week.
The 77-year-old monarch, accompanied by Queen Camilla, will pay tribute to the nearly 3,000 people who died at the striking memorial in Lower Manhattan on Wednesday.
He is also expected to meet with families of the victims in honour of the 25th anniversary of the attacks, with former New York Mayor Michael Bloomberg and other local officials attending.
But there will be no private audience between Mamdani and the King during a tour that coincides with 250 years since America's independence from Britain, insiders have revealed.
Mamdani is New York's first modern mayor identifying with democratic socialism and has been described as being 'woke' for his left-leaning views.
His academic father, Mahmood Mamdani, largely focused his work on anti-colonialism and decolonisation.
And last month, during St Patrick's Day celebrations, Mr Mamdani praised Ireland's 'resistance' to British rule.
'As we know, it was on Irish soil that the British Empire developed their colonial project,' the mayor said. 'And yet when I think of the Irish, I do not think first of oppression; I think of resistance.'
On the upcoming visit, Mamdani spokesperson Joe Calvello told Politico: 'The mayor will not meet privately with King Charles.
'He was invited to join a number of New York elected officials next week at a wreath laying at the 9/11 memorial with members of the British royal family.'
Details of the King's visit have surfaced as political rumblings emerged over the Falklands.
King Charles and Queen Camilla are due to touch down in Washington DC on Monday ahead of a banquet dinner at the White House the following day.
There have been calls from the Left for the trip to be cancelled after US President Donald Trump repeatedly mocked and humiliated Sir Keir Starmer for not supporting his military campaign in the Middle East.
And there was further concern last night after the US threatened to back Argentina's claim to the South Atlantic islands.
Trump is considering withdrawing support for UK sovereignty over the British territory, a leaked Pentagon email revealed.
It is one of a raft of controversial measures drawn up to 'punish' Western allies who he deems did too little to support his war with Iran.
The email provoked outrage from British veterans, politicians, and Falklanders, where 99.8 per cent of the population have voted to remain an Overseas Territory of the United Kingdom.
Keir Starmer on Friday vowed that British sovereignty 'isn't going to change', while SAS hero Robin Horsfall said ministers should treat President Trump 'with the contempt and disdain he deserves'.
But Downing Street was unable to say whether the UK was still capable of defending the archipelago given the parlous state of the Navy.
Asked twice, Sir Keir's spokesman called it a 'hypothetical' issue.
There are concerns Argentina's hard-Right leader, and Trump ally, Javier Milei could be emboldened by a change in US policy. Just this week, he said he was doing 'everything humanly possible' to claim the islands.
And Argentina's foreign minister Pablo Quirno said the country wanted to 'resume bilateral negotiations with the UK' to 'bring an end to the special and particular colonial situation in which they are immersed'.
As Charles prepares for his trip, a leaked memo suggested the US had threatened to back Argentina's claim to the Falklands.
There are currently just four Typhoon fighter jets on the islands along with HMS Medway - a Batch 2 River-class offshore patrol vessel - and 1,200 to 1,500 military and civilian personnel at RAF Mount Pleasant.
In 1982, it took a force of 26,000 men, two aircraft carriers, assault ships, destroyers, frigates, submarines, dozens of fighter jets and bombers to liberate the islands after Buenos Aires invaded.