Valet in the old school, aristocratic way. Think the guy who used to take care of George Washington's wigs

The wikipedia article is pretty interesting.

A valet or "gentleman's gentleman" is a gentleman's male servant; the closest female equivalent is a lady's maid. The valet performs personal services such as maintaining his employer's clothes, running his bath and perhaps (especially in the past) shaving his employer.

In a great house, the master of the house had his own valet, and in the very grandest great houses, other adult members of the employing family (e.g. master's sons) would also have their own valets.

In politics I have heard him referred to as a body man. The guy who's always with you who takes care of whatever you need has the type of gum you like etc etc etc. like where everyone else has a more official job. The job of the body man is just to take care of them. President or candidate.

https://m.youtube.com/watch?v=6elLDemrDls

Trumps valet practicing for when he has to “park the car”.