It has been well observed that the office of President of the United States should neither be sought nor declined.

Politicians
James K. Polk
11th US president (1795-1849). A dark-horse Democrat who, in one term, annexed Texas, settled Oregon and won the Mexican-American War — expanding U.S. territory by a third — then died of cholera 103 days after office.
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Source: ポーク、民主党全国大会への指名受諾書簡 (1844年6月12日)Verified