Hi, Since they refer to a debate, what they meant with "civil engagement" in the context ?
What is "substantially" here? I got three options but since I'm not sure with any of them (It would be hard to know their right meaning in English since I'm using Hebrew dicitionary) I have to ask about it here

“I’ve never had a person stand next to me in a
civil engagement and be as
substantially dishonest as he was,” Newt said of the second Florida debate last week."