A Fox News host is the mystery third client of US President Donald Trump’s lawyer, a court has heard.

A vocal Trump advocate who has never previously divulged any legal ties to the president’s attorney, Hannity denied he was a client of Mr Cohen.

“In response to some wild speculation, let me make clear that I did not ask Michael Cohen to bring this proceeding on my behalf, I have no personal interest in this proceeding, and, in fact, asked that my de minimis discussions with Michael Cohen,” he posted on twitter.

After last week’s raid on Mr Cohen’s offices, Mr Hannity took to the airwaves to denounce the probe as a “declared war against the president of the United States”.

Mr Cohen has admitted making a payment to the adult film actress, who claims the money was to keep her quiet about an affair she says she had with a married Mr Trump in 2006.