Well....not sure I agree about this point: “As soon as they ask her a question they have to shut up and let her answer it.”
From the hearings and testimony that I’ve seen in Congress, from both sides of the aisle. the questioners continually add questions, talk over, interrupt, and reclaim their time so that the questionee often can’t completes their sentences.
When the Jan 6 Committee questions people, is it in front of the whole House? Televised? I haven’t seen anything about who can see or watch.
You’re right about the method the congers critters use about butting in. But this is Sydney. She knows the drill. If they do figger out ways to interrupt her they will have wasted their own time. Not that that’s a bad thing either. And the repubs can give her their own time.