Joe Biden has confirmed that he has nominated Judge Ketanji Brown Jackson to serve on the Supreme Court, making her the first-ever Black woman to be nominated to the high court.On Friday, he shared a message on Twitter which read: "I'm proud to announce that I am nominating Judge Ketanji Brown Jackson to serve on the Supreme Court."MORE: The Queen hosts President Joe Biden and First Lady Jill Biden for tea at Windsor Castle - best photosHe continued: "Currently serving on the U.S. Court of Appeals for the D.C.