I've been asked for more details about this.
Here's a thread about the fishy Powell-Giuliani intel witnesses and their connections to Flynn:
@emptywheel https://twitter.com/PiperK/status/1334720739350605826

1. Phil Waldron was asked by Mike Flynn to testify for @RudyGiuliani. (Ask him.) Waldron has worked for the DIA and founded a company with Ronald Cassoni called Pointstream, Inc., which was involved in the Trump transition in cybersecurity.

Poinstream operates out of Dripping Springs, TX, where Waldron owns a brewery and shooting range and Allen West just spoke. He's a psyops guy who worked in Afghanistan for a long time.

2. Navid Keshawarz-Nia. Flynn's #DigitalSoldier campaign likes to say he's the "smartest man in the room," due to an old NYTimes article. The article is much more interesting, and shows Nia involved in...

a very high-level corruption scam in which top secret information was being illegally accessed. https://www.nytimes.com/2020/09/09/opinion/sunday/garrison-courtney-spies-contracts.html

Since then, he's become an internet ghost. If you Google him, what comes up are weird pop-up websites that support that the voter fraud narrative. Yesterday, Mike Flynn suggested (on Dave Janda's show) that he knows Nia, who also used to work for the DIA.

3. Russell Ramsland owned a company with Adam T. Kraft, who also used to work for Flynn in the DIA.

4. Gregory Stenstrom owns a mercenary pirate-chasing company that then switched to cybersecurity. Don't know if he knows Flynn, but he's been recommended by Ekaterina Pankratova for his "Command" and "IT" skills.

Pankratova runs the Kremlin procurement website.

5. Last one is Col. Thomas McInerney, who is openly working with Flynn and Powell and is a crazy conspiracy theorist with Russian connections. https://taskandpurpose.com/analysis/military-generals-conspiracy-theories/