Personal protection is NOT about monitoring or policing the behavior of your protectee, NOT about inserting yourself into his personal business, job, or politics, and NOT about keeping records of his actions. If your protectee feels a need to ditch his protection detail because they might disapprove of, or blabber about, his behavior - then your protection service has failed.
If you task the Secret Service with monitoring Presidential behavior - don't be surprised when the monitoring logs are full of "President ordered us out of the room", "President wrote something on paper and showed it to Mr. X" etc. Or when the President twists arms, to replace professional Agents on his detail with tight-lipped political loyalists.
And if you want the Secret Service to act as a Praetorian Guard, getting involved in decisions about who gets to be President...start reading about how well that setup worked back in the Roman Empire. And again don't be surprised if Presidents start packing the Secret Service with hand-picked loyalists.
(Disclaimer: I have friends and/or relatives who where on Secret Service protection details back in the 90's and 00's. They have said nothing whatever concerning events of the past few years. All opinions are my own. Etc.)