Possible leads on POTUS tweet dig

CGCG….NC may refer to:

CGCG [I] NC - www.CGCGINC.com, a web page formerly owned by Carlisle & Gallager.

The website now goes to NTT DATA SERVICES with an interesting list of clients. (https://us.nttdata.com/en/services)

Duckduckgo search for CGCGNC straight leads to a very disturbing gif of arms circling endlessly. If you click on the author's profile, he's done a lot of disturbing stuff.

Not really sure if these are relevant, but those extra letters and caps mean something.

https://en.picmix.com/stamp/cgcgnc-242399