The special counsel investigating Russian interference in the 2016 presidential election has told a judge that a former adviser to the Trump campaign repeatedly lied about his contacts with Russian operatives and "caused damage" to the government's inquiry.
"The government does not take a position with respect to a particular sentence to be imposed, but respectfully submits that a sentence of incarceration, within the applicable guidelines range of zero to six months imprisonment is appropriate and warranted", Mueller said in the filing.
"The defendant lied in order to hide his contacts with Russians and Russian intermediaries during the campaign and made his false statements to investigators on January 27, 2017, early in the investigation, when key investigative decisions, including who to interview and when, were being made", the memorandum said.
"The defendant lied in order to hide his contacts with Russians and Russian intermediaries during the campaign", the filing said. Last October, Papadopoulos pleaded guilty to charges of lying to the Federal Bureau of Investigation regarding his contacts with Russian operatives during the Trump campaign - including at least one meeting where he was offered thousands of emails meant to damage Hillary Clinton's campaign.
The professor is alleged to have told Mr Papdopoulos that the Russians possessed "dirt" on Hillary Clinton in the form of emails, before those emails became public.More news: Did Manchester United put the effort in against Brighton?
In the memo, the USA government claims that Papadopoulos' lies and obstruction helped Joseph Mifsud escape the country without being detained. The Mueller court filing has been made available online by Politco.
In a court filing on Friday, prosecutors say Papadopoulos did not provide "substantial assistance" to the Russian Federation investigation.
Mueller also maintained that Papadopoulos' false statements "were meant to harm the investigation, and did so". Mueller's team said in their Friday filing that that early interview, part of a national security investigation, was "completely voluntary". His lies were not momentary lapses.
The reviews from the Mueller team were not good.
It says he was warned about the seriousness of the investigation and that he might have important information to provide.More news: Fort Lauderdale Airport Shooter Is Sentenced To Life In Prison
While saying the government can not know what motivated Papadopoulos to lie, Mueller's office wrote in the sentencing memo that he was seeking a high-level position in the new administration's National Security Council or the State or Energy departments. He was questioned for several days and eventually pleaded guilty to lying to the Federal Bureau of Investigation.
After Friday's filing, Papadopoulos' wife, Simona Mangiante, told CNN she felt her husband should pull out of the plea agreement, saying he hadn't had proper representation in the negotiation with the government.
Papadopoulos' lawyer Thomas Breen said Friday night that he was unable to comment at this time and would respond through the court record in their own pre-sentencing memo, which must be filed by August 31. He received 30 days in prison.
In response to Papadopoulos' repeated mentions of Russia's interest in a meeting, then Trump campaign chairman Paul Manafort - facing trial in Mueller's probe on an 18-count indictment alleging bank and tax fraud for his earlier political work in Ukraine for pro-Russian interests - emailed his deputy, deputy Rick Gates, writing, "We need someone to communicate that [Trump] is not doing these trips".
Another defendant, Alex van der Zwaan, also pleaded guilty to lying to investigators.More news: Court Blocks Trump Administration Delay of Clean Water Rule in 26 States