He’s provided classified information to congress already yes. The intelligence committees in both houses I believe.
Information on these vehicles is being illegally withheld from Congress, Grusch told the Debrief. Grusch said when he turned over classified information about the vehicles to Congress he suffered retaliation from government officials. He left the government in April after a 14-year career in US intelligence.
He’s provided classified information to congress already yes. The intelligence committees in both houses I believe.
https://www.theguardian.com/world/2023/jun/06/whistleblower-ufo-alien-tech-spacecraft
The one you linked is a new set of hearings planned by the House Oversight Committee.