Reporter: He [Biden] said he's sharpest before eight pm. So, say that the Pentagon, at some point, picks up an incoming nuke. It's eleven pm. Who do you call? The First Lady?
Jean-Pierre: He has a team that lets him know of any news that is pertinent and important to the American people.
Reporter: Kevin McCarthy just said that when he was the speaker, "many times when we had meetings in the Oval Office, Jill was there as well." When [Mrs. Biden] is in these meetings, is she making decisions, or is she just advising [Biden]?
Jean-Pierre: No. [Biden] makes decisions.