title: David Rice Atchison
text: David Rice Atchison (August 11, 1807January 26, 1886) was an American Democratic politician. He was a United States Senator from Missouri. He was President pro tempore of the United States Senate for six years.
  
  He is best known for the claim that for 24 hours—Sunday, March 4, 1849 through noon on Monday—he may have been Acting President of the United States. This, however, has been dismissed by nearly all historians, scholars, and biographers.
  
  References
  
  1807 births
  1886 deaths
  United States senators from Missouri
  Presidents pro tempore of the United States Senate
  Politicians from Kentucky
  People from Lexington, Kentucky
  US Democratic Party politicians