Final answer:
William Henry Harrison had the shortest presidency in United States history, serving only 32 days before passing away.
Step-by-step explanation:
The answer to the question, 'Whose claim to fame is having the shortest presidency?' is Harrison. William Henry Harrison had the shortest presidency in United States history, serving only 32 days before passing away. He was inaugurated on March 4, 1841, and died on April 4, 1841, due to pneumonia.
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