GOP Senators brush off questions over Trump DOJ interference; AG Barr agrees to testify before House Judiciary Cmte next month; Focus shifts to more diverse states after Sanders wins NH; Sanders wins New Hampshire followed by Buttigieg, Klobuchar; Biden looks to black voters in SC for comeback; Bloomberg picks up several black lawmaker endorsements despite stop and frisk controversy To learn more about how CNN protects listener privacy, visit cnn.com/privacy)
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