In May 2019, Attorney General William Barr tapped Connecticut’s U.S. Attorney John Durham to look into issues related to the origins of the FBI’s Trump-Russia investigation.

Durham is a longtime federal prosecutor in Connecticut known for leading organized crime and public corruption cases. In 2008, Attorney General Michael Mukasey tasked Durham with investigating the CIA’s destruction of interrogation videotapes. A year later, Attorney General Eric Holder expanded Durham’s mandate to examine CIA torture allegations.

In May 2019, Attorney General William Barr tapped Connecticut’s U.S. Attorney John Durham to look into issues related to the origins of the FBI’s Trump-Russia investigation.

Now, Durham is conducting a comprehensive global probe of the U.S. government’s investigation of the Trump Campaign’s connections with Russia. The investigation covers pre- and post-election matters, and reportedly has come to include the unmasking of former national security adviser Michael Flynn, and the basis for the intelligence community’s assessment that Russia tried to help Donald Trump win the election in 2016.

Source: https://www.lawfareblog.com/durham-investigation-what-we-know-and-what-it-means