The assassination of President John F. Kennedy in 1963 wasn't the first time the U.S. had to deal with presidential succession. In fact, there had already been seven times that a vice president assumed the presidency due to the president's death.
Despite the yearnings of Catholics and others, especially Jewish and African-American voters, Kennedy faced obstacles.
Truman displayed a unique skill by throwing out a ceremonial pitch right-handed and then left-handed. Although the quality of both pitches is unknown, it still represents a unique feat in bi-partisanship.
How tough a job is it? Here are 10 storms weathered by our nation's presidents.