Any "protester" who threatened him like that (covert or overt) should have been arrested. But alas - there are two standards in this country. The "Affirmative Action Liberal Democrat" standard - and the standard for everyone else. The former (it appears) can do as it damn well pleases.
This week, when one protestor shouted at him, “We know where you live,”
To which the reply should have been.
“You are here now”!