|Elections in Pennsylvania|
Incumbent Democratic-Republican Senator Samuel Maclay, who was elected in 1802, was not a candidate for re-election to a second term. The Pennsylvania General Assembly, consisting of the House of Representatives and the Senate, convened on December 13, 1808, to elect a new Senator to fill the term beginning on March 4, 1809. The results of the vote of both houses combined are as follows:
|Constitutional||John D. Coxe||11||8.73|
Although Leib's regular term did not begin until March 4, 1809, Leib assumed office in January 1809 following the resignation of his predecessor, Samuel Maclay. He subsequently served out the remainder of Sen. Maclay's term until his own term began in March 1809.
- "U.S. Senate Election - 13 December 1808" (PDF). Wilkes University. Retrieved December 21, 2012.
- "PA US Senate - 1808". OurCampaigns. Retrieved December 21, 2012.
- "PA US Senate - Special Election". OurCampaigns. Retrieved December 21, 2012.
- Pennsylvania Election Statistics: 1682-2006 from the Wilkes University Election Statistics Project
| Pennsylvania U.S. Senate election (Class I)