EXCLUSIVE: Why King Charles Is 'Caught Between Rock and Hard Place' When It Comes to Visiting Donald Trump on U.S. State Visit

The dilemma comes amid strained relations between Washington and London, particularly following disagreements involving British Prime Minister Keir Starmer, and the U.S. military strategy in Iran.

Trump has recently criticized Starmer, declaring he is "no Winston Churchill," while U.K. political figures have urged the King to reconsider the trip altogether.

Despite this, officials involved in planning the visit warn canceling could trigger a significant diplomatic fallout.

A source in Washington familiar with the arrangements told us: "From where things stand, the King is genuinely caught between a rock and a hard place, because there is no outcome here that does not come with serious implications. Every option on the table carries a degree of political and diplomatic risk."

"If he goes ahead with the visit, there is a concern it could be interpreted as lending quiet support to a highly contentious moment in U.S. politics, which could draw criticism at home and abroad," the insider noted. "But if he pulls back, there is an equally strong expectation that Trump would respond very forcefully, potentially escalating matters in public and putting further strain on relations."

According to the source, the stakes surrounding the visit have intensified in recent weeks.

"There is a strong sense among those involved that Trump will 'go nuclear' if the visit is ultimately canceled, and that reaction would likely be immediate and very public," they said.

"The expectation is that Trump would not hold back in assigning responsibility if Charles stops his visit, and would almost certainly point the finger at Starmer and the British government, framing it as a political slight rather than a diplomatic decision."

The situation has been further complicated by ongoing conflict involving Iran and criticism from U.K. politicians. Ed Davey, leader of the Liberal Democrats, has called for Charles' visit to be scrapped, arguing it would be inappropriate given current global tensions.

He raged: "Keir Starmer should advise the King that the state visit to the US scheduled for April should be called off. At a time when Trump has launched an illegal war that is devastating the Middle East and pushing up energy bills for British families, it's clear this visit should not go ahead."

Meanwhile, Emily Thornberry, chair of the U.K.'s Foreign Affairs Select Committee, has warned the timing of the trip could prove problematic. She said: "If it was to go ahead next month – the dates haven't been confirmed, but everybody seems to think it's going to be next month – it would go ahead against a backdrop of a war and that, I think, is quite difficult."

However, others have urged Charles to proceed. Royal experts say the King's personal relationship with Trump could allow him to influence the U.S. president in ways unavailable to political leaders. One told us: "Unlike political leaders, Charles has the ability to engage Trump on a more personal level, and some believe that could open the door to more measured and constructive conversations."

They added: "That is precisely why the prospect of canceling the visit is being treated so seriously. Walking away would not just avoid a difficult situation – it would also eliminate any chance for that kind of direct, personal influence to be exercised."

Diplomatic voices in the US have also cautioned against abandoning the trip.

One source said: "From a diplomatic perspective, this visit is about far more than the current political moment. It represents the continuity of a long-established relationship between two allied nations, and traditionally, those ties are maintained even when there are clear disagreements at a governmental level. That is what makes the King's situation so challenging. He is being asked to navigate very real political tensions while also remaining above them, upholding his constitutional role of neutrality without appearing disengaged or ineffective."