Prince Harry has been branded a "hypocrite" after requests for information on his US visa application were denied by the US government, stating it was "private information".
The Heritage Foundation lodged an appeal requesting the royal's visa application to be made public, which was denied.
The request was sparked after the Duke of Sussex documented past drug use in his tell-all memoir, Spare.
In his book, Prince Harry revealed: "I had been doing cocaine around this time at someone's country house during a shooting weekend."
Prince Harry has admitted his past drug use in his tell-all memoir, Spare
PA
Harry continued: "I'd been offered a line and I'd done a few more since. It wasn't much fun and it didn't make me particularly happy as it seemed to make everyone around me.
"But it did make me feel different, and that was the main goal. Feel different."
Speaking on his GB News show, Patrick Christys slammed the "pothead Prince" for "repeatedly referencing" his drug use, despite being allowed his visa.
Under American legislation, past drug use can be grounds to deny a visa application.
Joined by Nile Gardiner, part of The Heritage Foundation who filed the information request, Gardiner claimed the issue of transparency for Prince Harry's immigration application is "very important for the American people".
Gardiner added: "No one should be above the law, and it's very clear that everyone should be held to account in terms of drug use and applying to the United States."
Patrick then argued: "If he does fail, he could just go to the southern border, wander in illegally and then stay indefinitely.
"But why does it matter so much to you, really, about this? Because then he'll just come back here and it'll be our problem, won't he?"
Patrick Christys slammed the "pothead Prince" for "repeatedly referencing" his drug use
GB News
Gardiner replied: "Well, I think it matters to the American people whether or not people lie on immigration applications. And I do think that the law should be applied. No one should receive preferential treatment because of their celebrity status.
"At the Heritage Foundation, we believe in the enforcement of the rule of law, and Prince Harry should receive the same level of scrutiny as everyone else."
Gardiner continued: "And this argument that he should be treated purely as a private citizen, of course is complete nonsense.
"After all, he is a huge public figure in the United States, known to 10s of millions of Americans. He's done extensive media interviews. He should be held to account as a public figure."