I've reread some of the old Q drops, and some seem to be relavant to POTUS's device being tracked or 3 letter attepting to track it.

and also one may refer to Message B…

Ref:- Txt Message B "incriminating (Text B) is lost due to a glitch (recovered later only"

"What would happen if texts originating from a FBI agent to several [internals] discussed the assassination (possibility) of the POTUS or member of his family?"