The former President Donald Trump also claimed in his exclusive interview with Nigel Farage on GB News that he was "not a fan of hers at all," when referring to Meghan Markle, adding that he thought she was "disrespectful to the Queen."
During the interview, Nigel Farage said: "Someone you may not think is quite as wonderful is a recent British export to America.
"And I think we're kind of quite pleased to have got rid of him really, it's Prince Harry, of course, and Megan, living over here being not only disobliging about you at every given opportunity, but actually the entirety of the conservative movement.
"And now we hear that she's ringing up senators, ringing up members of Congress, lobbying for law changes, and doing some of this on heavy paper that says the Duchess of Sussex.
"We saw that we saw Oprah Winfrey interview and it turned out later a lot of what she said simply just wasn't true.
"Should she go into American politics?"
Trump replied: "I'm not a fan of hers. I wasn't from day one. I think Harry has been used horribly. I think someday he will regret it.
"You know, a lot of people are saying I'm very good at the prediction business. I think someday he will regret it."
He continued: "I'm not a fan of hers at all. And I think she's very disrespectful to the Queen we just spoke about, who's such a great woman is such a great person, historic person.
"I think she's very disrespectful to the Royal Family. But maybe most importantly to the Queen. And I just from day one, I never got it. I never got it. I see her. I listened to her.
"She's trying to do things that I think are inappropriate, very inappropriate, but I think Harry's been used and been used terribly.
"It's ruined his relationship with his family. And it's really, really, I think it hurt the Queen."
Mr Farage added: "And you can't use a royal title and get involved in American affairs."
Mr Trump stated: "I didn't know she was doing that, but it's not appropriate."
More to follow...