we know this b/c Garland gave Weiss Special Counsel status after the testimonies.
And when did Archer state that Shokin was shielding Burisma? I know he testified that Burisma executives wanted help from Hunter to get DC to go after Shokin for investigating Burisma.
https://www.washingtonexaminer.com/news/house/archer-testified-burisma-officials-pressured-hunter-about-shokin