But what was the nature of that cooperation, and what information did he provide?
The thick black lines through much of the paperwork are hiding most of that information... so Twitter users stepped in with some theories of their own:
This memo is more blacked out than Brett Kavanaugh on a school night. https://t.co/0EvT6YCfeg— The Daily Show (@TheDailyShow) December 5, 2018
wow, shocking reveal from the flynn memo:— ˡᵛˡ ⁴⁵ CHAOS POTUS (@thetomzone) December 5, 2018
Maybe it's the beer talking ⬛⬛⬛⬛⬛ but ⬛⬛⬛ ⬛⬛⬛ ⬛ ⬛⬛⬛ ⬛⬛⬛⬛⬛⬛ butt ⬛⬛⬛⬛⬛⬛⬛⬛⬛⬛⬛⬛⬛ won't quit. ⬛⬛⬛⬛⬛⬛⬛⬛⬛⬛⬛ big chewy pretzels⬛⬛⬛⬛⬛⬛ five dollars??!!!? ⬛⬛⬛⬛⬛⬛ outta here
If I’m reading this Flynn sentencing memo correctly, Henry Rollins should be really worried pic.twitter.com/1pnSKCE9bW— Benjy Sarlin (@BenjySarlin) December 5, 2018
To my mind, this is the most revealing passage of the sentencing memo:— Josh Chafetz (@joshchafetz) December 5, 2018
⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️ probably ⬛️⬛️⬛️⬛️⬛️⬛️⬛️ light treason ⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️ in the banana stand.
⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️ huge mistake.
"Be sure to drink your Ovaltine." https://t.co/wrEhlRNAyT— pourmecoffee (@pourmecoffee) December 5, 2018
Mueller's Michael Flynn Memo is not a nothingburger, but it sure does look like the Hamburglar. pic.twitter.com/pukKJXIR5x— Jeremy Newberger (@jeremynewberger) December 5, 2018
Cool thing about Mueller's Flynn sentencing memo is that if you flip it sideways it looks like a prison cell pic.twitter.com/8GtEb3mNgk— Adam ██████████ (@AdamBlickstein) December 5, 2018
There are some fascinating details buried in the Flynn memo: pic.twitter.com/hprt09unZy— pixelated no longer too early for a christmas name (@pixelatedboat) December 5, 2018
Modern art 2018 brought you you by Robert Mueller. https://t.co/IQviq9VTrx— KNDesign (@KNDmex) December 5, 2018
The work is strongly derivative of NZ Artist Gordon Walters but without the Bi-Cultural resonances. pic.twitter.com/HwcdRGcAb8— Brent Allpress (@BrentAllpress) December 5, 2018
Mueller provided visual aids with his memo. For instance, this is the view from Trump’s future residence. pic.twitter.com/ObWSukdl8i— Ken Olin (@kenolin1) December 5, 2018
damn mueller redacted everything pic.twitter.com/m0uiYMw68p— Ben Rosen (@ben_rosen) December 5, 2018
Hey .@realDonaldTrump, you up? I just wanted you to know that #Mueller knows about ███████████████████. Also, ████████████████. Oh, he also knows about █████████████████████████████ and █████ Jr. Be Best, Paul— Paul Chambers🌊📢🏥🤡 (@feedingtubepaul) December 5, 2018
This article originally appeared on HuffPost.