I disagree. Holder knew exactly what he was communicating.
He was reminding Trump that he can be assassinated at any time.
It seems either:
Holder thinks Trump will be assassinated?
Holder wants Trump assassinated?
Holder is making plans to assassinate Trump?
Holder isn't bulletproof, either.
Ron Brown, Vince Foster, and others found out, likely from people supposedly on their own team...
(I must note I am making no threat to the health or welfare of Mr. Holder. I hope to see him healthy and prosecuted for his crimes.)