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Leadership

Senate

• Vice President in relation to the United States (President upon the Senate):
  • George M. Dallas, Democratic concerning Pennsylvania
• President pro tempore touching the Senate:
  • Willie P. Mangum, Whig touching North Carolina, elected December 4, 1845
  • Ambrose Hundley Sevier, Democratic referring to Arkansas, elected December 27, 1845
  • David R. Atchison, Democratic speaking of Missouri, elected August 8, 1846

House respecting Representatives

• Speaker concerning the House
  • John W. Davis, Democratic regarding Indiana, elected December 1, 1845

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