Causes of Abnormal Mucus in the Stool. Examples of conditions that can be responsible for abnormal mucus in the stool can include Irritable Bowel Syndrome--including Ulcerative Colitis and Crohn's Disease (an extremely inflammatory condition)--infection and mechanical obstruction.
Assassination and Death. Four sitting Presidents have been assassinated while in office: Abraham Lincoln, James Abram Garfield (1881), William McKinley (1897-1901), and John F. Kennedy (1961-63).
Two U.S. presidents have been impeached: Andrew Johnson, the seventeenth chief executive, and William J. Clinton, the forty-second. Johnson, a Southern Democrat who became president after Lincoln's assassination, supported a mild policy of Reconstruction after the Civil War.