Mueller began his investigation in May 2017, which has also examined Trump’s finances and the possibility that the president may have obstructed justice, and has imputed 34 people, including six ex-advisers to the president.
The decision to publish or not publish the report will depend on Barr, who on Friday confirmed that he had received the expected document in a letter sent to the leaders of the judicial committees of the House of Representatives and the US Senate.
“Mueller has concluded his investigation on Russian interference in the 2016 elections and on related issues,” Barr wrote in the letter, which was accessed.
The Secretary of Justice said he was “reviewing the report” and said he hopes to be able to “notify (the legislators) of the main conclusions of the special prosecutor this weekend as soon.”
“I am committed to the greatest possible transparency, and I will keep you informed about the status of my review,” said Barr, who has been in the position for a month.
The White House said that “it has not received the special prosecutor’s report nor has it been informed” about its contents, in a tweet from Trump’s spokesperson, Sarah Sanders.
“The next steps depend on Attorney General Barr, and we will wait for the process to take its course,” Sanders wrote.
Last week, the US House of Representatives voted unanimously in favor of Mueller’s report being made public, and Trump himself said on Wednesday that he does not care that the document is declassified.
“Let it come to light, let people see it,” Trump said, but added that it is Barr who will make the final decision on the outcome of an investigation that the president has repeatedly described as “witch-hunts” and “illegal.”
The investigation has resulted in charges against Trump’s former campaign manager, Paul Manafort, and his right-hand man, Rick Gates; and against an ex-adviser of the then Republican candidate, George Papadopoulos.
Trump’s ex-lawyer, Michael Cohen, has also been charged; his first National Security Adviser in the White House, Michael Flynn; and the ex-collaborator of the president, Roger Stone.
Of the 34 indicted individuals, 26 are of Russian nationality, and Mueller has also beaten three Russian companies, including the Internet Research Agency, accused of launching “an information war” on social networks to divide US society.