liberty mutual insurance. ♪ liberty. liberty. liberty. liberty. ♪ ♪ >> when it comes to this delicate political situation, the power of the presidency, whether this investigation is warranted, bill barr had better give us some ironclad rock-bottom assurances in terms of his independence and willingness to step aside and let mueller finish his job. >> harris: democrats gearing up to grill president trump's choice for attorney general. that happens tomorrow when he goes before the senate judiciary committee for two days of confirmation hearing. they are concerned that has passed criticism of the mu investigation will influence his oversight of that probe. in written testimony, really said it was earring, barr says he will let mueller finish the investigation and valves that