For the Russia investigation, the filing said Flynn provided "content and context" of interactions that the Trump transition team had with Russian officials regarding sanctions that the Obama administration sought to impose at the end of 2016, as well as a vote on a United Nations Security Council resolution about Israel.
Last week, Cohen pleaded guilty to lying to Congress to help cover for Trump. However, his plea agreement states he is eligible for a sentence of zero to six months and can ask the court not to impose a fine.
He pointed out that Mueller's team spoke to Cohen, President Trump's former attorney, for 70 hours as part of a guilty plea that was revealed last week.
Hope breeds eternal in the hearts of Democrats, but other voters see little chance of Special Counsel Robert Mueller's investigation trapping President Trump. According to the filing, Flynn has been cooperating in "several ongoing investigations".
But for the most part, prosecutors will spell out in detail the matters they believe the former Trump campaign chairman misled them about, and their public disclosures could shed new light on where the Russian Federation investigation stands.
Image Mr Trump's former personal lawyer Michael Cohen is cooperating with the inquiry
"Several senior members of the transition team publicly repeated false information conveyed to them by the defendant about communications between him and the Russian ambassador regarding the sanctions", it continued.
Flynn's false statements stemmed from a January 24, 2017, interview with the Federal Bureau of Investigation about his interactions with Sergey Kislyak, Russia's then-ambassador to the USA, as the Obama administration was levying sanctions on the Kremlin in response to election interference.
Around that same time, Trump asked then-FBI Director James Comey to let the Flynn investigation go, Comey has said. Flynn was sacked from the White House on February 13, 2017, after he misled Trump administration officials, including Vice President Pence, on his communications. The plea deal said Flynn's cooperation may include answering questions, taking government-administered polygraph examinations, providing sworn statements and participating in "covert law enforcement activities".
The filing is the first time prosecutors have described Flynn's assistance since his guilty plea past year. Stone told ABC News on Sunday he would not testify against Trump and has not discussed a pardon with the president.
Other than Flynn and Cohen, Mueller's team charged former Trump campaign foreign policy adviser George Papadopoulos with making false statements to the Federal Bureau of Investigation.
Cohen pleaded guilty to tax evasion, making false statements to a bank, campaign finance violations, and lying to Congress.
Qualcomm Snapdragon 855 officially announced
Qualcomm is now hosting its Snapdragon Summit, so expect more details on the Snapdragon 855 to be revealed in the coming days. For example, Verizon announced yesterday that Samsung will release a 5G smartphone in the first half of 2019.