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).
Since the office was established in 1789, 44 people have served as president. The first, George Washington, won a unanimous vote of the Electoral College. Grover Cleveland served two non-consecutive terms in office, and is counted as the nation's 22nd and 24th president. Thus the incumbent, Donald Trump, is the nation's 45th president. There are currently five living former presidents.