Prince Harry and Meghan Markle could be booted out of the United States by incoming President Donald Trump due to a potentially damaging admission the Duke Of Sussex made in the past, described as "extremely foolish" by an expert.

In his memoir Spare, Harry revealed his experiences with psychedelic substances, including using magic mushrooms at a party in Los Angeles and smoking marijuana on other occasions.

Royal experts have criticised this admission, warning it could have severe consequences for the couple.

Richard Fitzwilliams, a Royal commentator, stated: "Harry was extremely foolish to discuss his drug taking in Spare both in interviews and in the memoir, available in paperback. However, the Sussexes have kept a relatively low profile during the election, urging Americans to vote but not being explicit as to whom for.

"At one time it was thought that Meghan might enter politics but we have seen no sign of this. It is most unlikely that Trump would risk an embarrassing episode involving the royal family by expelling Harry, if it was discovered that he had not revealed his drug taking on his Visa application."

Fitzwilliams added that it's unlikely Trump would risk an embarrassing episode involving the Royal family by expelling Harry if it was discovered that he had not disclosed his drug use on his Visa application.

In an interview with GB News earlier this year, Trump was asked by Nigel Farage if there would be any "special privileges" for Harry, to which Trump replied: "No. We'll have to see if they know something about the drugs, and if he lied they'll have to take appropriate action."

Farage probed further, asking: "Appropriate action? Which might mean...not staying in America? " To which Trump ambiguously replied: "Oh I don't know. You'll have to tell me. You just have to tell me. You would have thought they would have known this a long time ago."

However, it's been revealed that the Royal couple, who relocated to the US in 2020, are not without contingency plans, as reported by the Mirror. They reportedly have arrangements in place for an alternative residence, with their sights set on Portugal where they own a new holiday home, conveniently near Princess Eugenie and Jack Brooksbank's property.

In a striking excerpt from his book 'Spare', released in January 2023, Harry shares an anecdote about hallucinating at a Hollywood party after taking magic mushrooms, describing how he saw a bin transform into a grinning face. Demonstrating a level of openness seldom seen in the Royal family, Harry admits that while cocaine had little effect on him, "Marijuana is different, that actually really did help me."