It likely wouldn't.
It would instead be up to Nadler/Schiff/Cummings to decide whether to follow the Rodino precedent set in 1974.
Namely, his counsel James St. Clair was able to question, suggest witnesses and deliver a closing argument.
That was Rodino's decision.
That measure authorized the inquiry and gave the committee broad subpoena power.
But Rodino insisted at the time the measure wasn't necessary to issue his subpoenas.