as prez, i would totally have a couple of goats. different breeds too, so they would be visually distinct enough for the press corps to learn the two names. the lawn is enormous and it would be a great excuse to put massive parts of it under some kind of forage management plan instead of just having it mowed into those finished grid patterns like an opulent douche. give them abrahamic religious names... nothing major, but like a deep cut. like Zebedee and Drusilla. make the evangelicals think i'm signaling to them, keep them occupied in observing the grazing patterns like it's a secret code.

but really just because goats are funny and i would make sure they were nearby during outdoor press conferences so there would be weird bleating in the background of any reporting.