Here’s the letter from Flynn’s lawyers re: the Russia investigation taking the fifth, refusing to turn over documents, and again making the offer for testimony in exchange for immunity:
https://www.documentcloud.org/documents/3728320-Michael-Flynn-counsel-s-letter-to-Senate.html
I’d now like to take a moment of silence, to commemorate the the fact that we will no longer have arguments about whether these documents from Flynn’s lawyers are forgeries, Photoshops, or some other elaborate ruse that Flynn’s lawyers are afraid to contradict for fear of the wrath of Hillary the all-powerful private citizen.