That's what they are doing here ~ sounds remarkably like something Greg Craig would come up with. It's just political street theatre with the purpose of polluting the jury pool.
Unless Schumer and Cummings have some legal connection with the potential defendants they'd better keep all of this in the US Capitol building.
I think what is going on here goes beyond the gun issue...it is an effort now in their apparently waning days of control to rum through as much of their agenda via law or regulation as they can.