How do we know the person is an evangelical Christian?
Try is conversation:
Pollster: Hello, I am from XYZ polling and I am interested in the thoughts of evangelical Christians on removing President Trump from office. Will you answer a few questions?
Person Polled: Yes.
Pollster: Are you and evangelical Christian?
Person Polled: (Thinks to self, “Well, if I say no, they won’t count my rage against the dictator.) Yes, I am.
Pollster: Do you strongly support removed, somewhat support removal, somewhat against removal, strongly against removal.
Person Polled: (Thinks: like all good Demoncrap atheist who claim to be evangelical Christians) I strongly support removal (Thinks: of the Dictator in the White House.)
I think you got it!