In reality, the board is just a few policy nerds of a niche subject. Here is the book the head of the board wrote.
https://www.amazon.com/How-Lose-Information-War-Conflict/dp/1838607684
They were going to talk about fake news like dry, boring nerds. They never had any power to remove information.
So yeah, I'm not too worried about Republicans getting their hands on a board filled with a few PhD. It's not like 2024 president Trump can focus long enough to read their reports.