Lincoln's mental stability was called into question after she suffered from depression following the deaths of not only her husband but also two of her young children. She allegedly spent the years after President Lincoln's death attempting to communicate with him via seance.

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The dueling legal teams will dress in period clothes from the era but will argue their case relying on current law. Actors will play the roles of Mary Todd Lincoln and Robert Todd Lincoln, but real-life judges will serve as lawyers for each side in the re-creation of the case. Former Illinois Gov. Jim Edgar will narrate the trial.

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Mary Todd Lincoln spent about four months in the Bellevue Place sanitarium after being declared insane in 1875. However, after secretly communicating with her lawyer and writing a letter to the Chicago Times, she was eventually released. In a letter written in August 1875, Lincoln wondered why her son Robert had seemingly turned on her. She later came to believe that her son's actions were an attempt to take control of her finances:

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The letter is just one of 25 written by Mary Todd Lincoln during her "insanity period" and was believed to have been burned by Robert Todd Lincoln. However, the letters were discovered in 2006 in a steamer trunk owned by the children of Robert Todd Lincoln's attorney.

Mary Todd Lincoln to be retried for insanity