The Justice Department has recommended that former National Security Adviser to President Donald TrumpMichael Flynn, should be incarcerated for six months, as a result of lying to the FBI in Special Counsel Robert Mueller‘s Russian investigation.

Flynn, who had previously shown remorse for his actions and cooperated with the federal prosecutors, has made a 180 after his guilty plea in the 2017 felony charge.

Flynn pleaded guilty in 2017 to lying to investigators about his connection and conversations with the former Russian Ambassador to the U.S., Sergey Kislyak, in December of 2017. Mueller offered Flynn a plea bargain, in which Flynn admitted to “willingly and knowingly” making “false, fictitious and fraudulent statements” to federal prosecutors about conversations that had taken place with Kislyak.

Flynn, after prosecutors offered him the probation plea and some-time served, then shifted to a more defensive position and began not cooperate with federal prosecutors, which prompted the Department of Justice to recommend a six-month detainment period at a federal prison.

The original terms of the plea-probation arrangement were made when Flynn was cooperating with the FBI about the connection between Trump’s 2016 campaign and the Russian Democratic election interference.

Flynn had been the only member of the Trump Administration to plead guilty in Mueller’s investigation. After assisting the government with discovering the truth by engaging in 19 interviews with the Mueller team and other Justice Department prosecutors – he then turned the tables by employing a new collection of lawyers, who sought to dismiss the entire case altogether.

In a 33-page document sent to the U.S. District Court Judge Emmet Sullivan, federal prosecutors wrote, “Far from accepting the consequences of his unlawful actions, he has sought to blame almost every other person and entity involved in his case… Most blatantly, the defendant now professes his innocence.”