Nancy Reagan
Reagan always protected her husband and controversy occurred when it was revealed in 1988 that she had hired an astrologer to assist in planning the president's schedule after the 1981 assassination attempt on her husband. She had a strong influence on her husband, playing a role in a few of his personnel and diplomatic decisions. After the Reagans left the White House in 1989, she devoted most of her time to caring for her ill husband who was diagnosed in 1994 with Alzheimer's disease until his death in 2004. She remained active within the Reagan Library and in politics. Until her death, Reagan supported stem cell research.