Mrs Clooney has represented journalists detained in Burma, Egypt and Azerbaijan. She railed against Trump at the United Nations Correspondents Association annual awards ceremony in New York. She made a reference to the former Washington Post journalist from Saudi Arabia, Jamal Khashoggi, who was brutally murdered inside the Saudi consulate in Istanbul in October.

Speaking at the prestigious event, she said: “The US President has given such regimes a green light and labelled the press in this country the enemy of the people.

“And of course two months ago a Washington Post journalist, Jamal Khashoggi, walked into a consulate in Istanbul and was brutally tortured to death.”

The Human Rights lawyer and close friend of Meghan, Duchess of Sussex, revealed she tried to avoid reporters “in my personal life” – although her mother and father-in-law are both journalists and her husband “played one on TV”.

George Clooney, who was in the audience, appeared to turn tearful as she paid tribute to her father-in-law, Nick Clooney, “a veteran journalist who has spent his career challenging authority and orthodoxy”.

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She added: “He has, in turn, raised a son who I am very happy to be married to and who has spent his lifetime doing the same.”

Mrs Clooney was accepting an award for global citizen of the year from the association, which was celebrating its 70th anniversary.

She used her acceptance speech to lambast the US President, who recently attended the funeral of George Bush Senior, alongside all other living current and former US Presidents.

Mr and Mrs Clooney are tipped as hot favourites to be godparents for the Duke and Duchess of Sussex’s first child.

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A family insider said George has a “strong hunch” he and his wife could be asked.

The Hollywood superstar’s cousin, Ben Breslin, said: “He’ll make a wonderful godfather!”

Asked if he would like to welcome Meghan and Harry to his hometown after the baby’s birth, Mr Breslin told the Mail Online: “Absolutely, that would be crazy but fun.

“I’m not in on those Royal circle talks, but that’s not to say next time he comes in we might sit down for an hour over bourbon and talk about it.

“George’s like the rest of us, he’s as common as an old shoe, but he likes to hobnob with the big people, so that’s great.”