Once you plead the 5th, you cannot answer any questions at all, so he will do so..................
I predict he will speak to it being politically motivated and then be jailed for refusing to testify after relinquishing his 5th Amendment rights.
It’s a far better optic for his master.
I don’t think that’s correct. They can keep asking questions, and you invoke the privilege for each applicable question. It’s not a blanket refusal to answer all questions — but of course that’s how it usually turns out as they repeatedly don’t answer questions.