There has been increased chatter re: Mueller
– That is possibly referring to the Page/Strozyk texts that were just released which seem to imply that Mueller and his whole team were chosen by Page and/ Strozyk.
He is asking Q if perhaps Q and company are a "confused" as to who's side Mueller is on.
Can you trust? He's taunting Q that he shouldn't be so sure that Mueller is on POTUS side.