Here is the most crucial quote from the statement that follows the letter:
Civil rights leaders, including my husband and Albert Turner, have fought long and hard to achieve free and unfettered access to the ballot box. Mr. Sessions has used-the awesome power of his office to chill the free exercise of the vote by black citizens in the district he now seeks to serve as a federal judge. This simply cannot be allowed to happen. Mr. Sessions’ conduct as U.S. Attorney, from his politically-motivated voting fraud prosecutions to his indifference toward criminal violations of civil rights laws, indicates that he lacks the temperament, fairness and judgment to be a federal judge.
Just this hour, House Democrats led by the Congressional Black Caucus have stormed the Senate floor to oppose Sessions. Join them by spreading King’s letter and contacting your Senator.