a piece of former president donald trump's use of executive privilege. you may remember that he tried to claim that executive privilege would bar any public servant from testifying before congress. remember, about the ukraine call and his impeachment testimony. he thought that no state department employee, no justice department employee could be allowed to talk if he claimed executive privilege. well, that wasn't the case. it did slow things down but ultimately it failed legally because it was a specious claim. >> pete, what is it that january 6 investigators hope to uncover in these documents, what exactly is it they're asking for right now? >> well, i think you could look at it at the not benign level and say they just want to know what happened, they want to know what discussions were going on in the white house about the rally that was planned on the 6th about any efforts to get the justice department to try to