The link above will show the letter from Coretta Scott King from 1986 that she sent to the Senate Judiciary Committee when it was considering Jeff Sessions for a Federal Judgeship. He was not appointed to the post.
During the current Senate debate on Sessions' appointment to President Trump's cabinet as U. S. Attorney General, Senator Elizabeth Warren tried to read the letter from Martin Luther King's widow into the record. She was silenced by Senate Majority Leader Mitch McConnell using a procedural maneuver to prevent her from reading aloud the contents. He said that the letter was "impugning" Sessions.
If you think that McConnell's behavior is reprehensible and overtly racist, click the link and have a read to get an idea of the character of the man Donald Trump has chosen to be his Attorney General.
Then count down the days until the midterm elections.