Blanche, a former New York federal prosecutor, formally takes charge of the Justice Department after serving as acting attorney general since Pam Bondi’s April firing.
The Justice Department said in a statement it was not releasing some information the state requested because of federal court orders that ban disclosing victim-identifying information.
The hearing arrived at a tumultuous time for the DOJ, with mass firings and resignations and Democrats and critics raising alarms that Blanche is still functioning as Trump's personal lawyer.
Homeland Security Secretary Markwayne Mullin announced Lyons' departure, calling him a great leader of ICE who helped to make American communities safer.