own spin on it, correct it before its release. do you commit that would not happen if you're attorney general? >> that will not happen. >> reporter: but it was barr himself who wrote the justice year, rais a memo just last mueller's investigation into possible obstruction of justice. when pressed today about what he wrote -- >> i think it was entirely proper. >> reporter: and given what he wrote, when asked what he would do if career ethics officials recommended he recuse himself, barr said there are different kinds of recusals. some mandated, others judgement calls. >> let's imagine it's a judgment call and the judgment by the >> if i disagreed with it. >> and what thtoul dsiifbae fers medgju >> such as? >> such as whatever facts are relevant to the recusal. >> all right, let's get to pierre thomas, live up on the hill tonight for us.