The Pennsylvania General Assembly, consisting of the House of Representatives and the Senate, convened on January 10, 1843, to elect a new Senator to fill the term beginning on March 4, 1843. Incumbent DemocratJames Buchanan, who was elected in 1834 and re-elected in 1836, was a successful candidate for re-election to another term. The results of the vote of both houses combined are as follows: