The US Justice Department has launched a criminal investigation into the origins of the Mueller inquiry, US media report.
Why is the Mueller report being investigated?
The administrative review of the Mueller investigation began in May. It is being overseen by the US Attorney-General William Barr and is run by US federal prosecutor John Durham. Mr Durham was tasked with determining whether the collection of intelligence on the Trump campaign in 2016 was lawful. He is known for investigating links between FBI agents and organised crime, and investigating the destruction of CIA interrogation videos. Last April, Mr Barr told members of Congress that he believed "spying did occur" on the Trump campaign in 2016, adding: "The question is whether it was adequately predicated. And I'm not suggesting that it wasn't adequately predicated. But I need to explore that." Critics accused Mr Barr of launching an administrative review more in the interests of the president than the interests of justice. President Trump said at the time he did not order Mr Barr to launch the administrative review, but added that he was "so proud of our attorney general" and it was "a great thing that he did". Mr Trump has previously accused the FBI investigators who first launched the probe into his election campaign of treason. BBC