Former Trump campaign adviser Rick Gates has pleaded guilty to one count of conspiracy against the United States and one count of making false statements to FBI agents. It’s the latest development to come out of special counsel Robert Mueller’s investigation into Russian involvement in the 2016 presidential election and potential collusion with the Trump campaign.

Gates was a longtime business associate and protégé of former Trump campaign manager Paul Manafort, who is also being targeted in Mueller’s investigation. On Thursday, a grand jury returned 32 indictments against Manafort and Gates for a wide range of tax, financial, and bank fraud crimes, including the laundering of $30 million.

As part of the plea deal, Gates is expected to cooperate with Mueller’s investigation against Manafort, and potentially others who have yet to be indicted.

Here are all of the documents related to Gates’s plea deal:

Charging document

Statement of offense

Plea agreement