Senator Elizabeth Warren was “rebuked” by Senate majority leader Mitch McConnell during Tuesday night’s Senate debate over the nomination of Senator Jeff Sessions as Attorney General when she began quoting a 1986 letter written by the late Coretta Scott King — a letter that called out Sessions’ history of Black voter suppression.

Mrs. King sent the letter to¬†Senator Strom Thurmond when Sessions was nominated to serve as a federal judge. McConnell objected to Warren’s attempt to read the letter, and the Senate subsequently ruled in a 49-43 vote that Warren had “breached the rules of debate.”

An image of Mrs. King’s letter is¬†below, along with video of Senator Warren quoting from it during the Senate debate.