Trying again since no one replied lb …
methinks Dan Scavino, POTUS's social media guy, runs the @POTUS_Schedule twatter account, which I've been researching for months and I am 100% convinced is run by the WH (albeit with no blue checkmark, I assume for plausible deniability).
The "forgot password" link for both Scavino's and P_Sched twatters bring up phone numbers ending in -05. There's only a 1% chance that any two phone numbers end in the same two digits.
And if the email address for the P_S account ending in @c..*** isn't at .wh.gov, what the hell could it possibly end in?
P_Sched has been confirming Q on a near-daily basis ever since Q linked to it on June 13 (the "busy day / castle" proof).
This is more evidence that the WH has been quietly promoting Q from P_Sched for months.