Court filings have revealed that Special Counsel Robert Mueller has even broader authority than the already extensive power granted by Rod Rosenstein to investigate the Trump campaign “and any matters that arose or may arise directly from the investigation.” In an August 2, 2017 memo, Rosenstein gave the special counsel authority to investigate Trump campaign chairman Paul Manafort for his efforts in the Ukraine, and his ongoing outreach to Russia.

Robert Mueller, the U.S. Justice Department’s special counsel, is specifically authorized to investigate allegations that Paul Manafort, President Donald Trump’s former campaign chairman, colluded with Russia to interfere with the 2016 presidential election, a court filing showed late on Monday.

They court documents also show that Mueller is specifically authorized to investigate Manafort’s ties to Ukraine’s former pro-Russia government.

Mueller was given explicit instructions to go after Manafort in addition to his investigating Trump.