[thecodont]

If a canine’s owner has a fear response to a person, the canine will typically sense his owner’s fear and react.

Which raises the question: why would the dog's owner have a fear reaction to a White House security person?

[reasonisfaith]

El correcto.

[Darnright]

“why would the dog’s owner have a fear reaction to a White House security person? “

Dementia might very well cause such a reaction.