John McCain carried the 3rd District by a 49%-48% margin, which reflects the political balance of the area. PA - District 3 from OurCampaigns.com Race ranking and details from CQ Politics Campaign contributions from OpenSecrets Polling District 4 Democratic incumbent Jason Altmire ran for re-election and faced Republican attorney Keith Rothfus. In 2008, McCain carried this district with 55% of the vote. Altmire narrowly won re-elected with 50.8% of the vote. PA - District 4 from OurCampaigns.com Race ranking and details from CQ Politics Campaign contributions from OpenSecrets District 5 Republican incumbent Glenn "G.T." Thompson successfully ran for re-election. He defeated Democrat Michael Pipe and Libertarian Vernon Etzel. In 2008, McCain carried this district with 55% of the vote. PA - District 5 from OurCampaigns.com Race ranking and details from CQ Politics Campaign contributions from OpenSecrets District 6 Republican incumbent Jim Gerlach successfully ran for re-election. He defeated Democrat Iraq War veteran Manan Trivedi. In 2008, Obama carried this district with 58% of the vote. PA - District 6 from OurCampaigns.com Race ranking and details from CQ Politics Campaign contributions from OpenSecrets District 7 Democratic incumbent Joe Sestak retired to run for the U.S. Senate. Democratic nominee State Representative Bryan Lentz faced Republican nominee U.S. Attorney Pat Meehan and American Constitution Party (independent) nominee Jim Schneller. PA - District 7 from OurCampaigns.com Race ranking and details from CQ Politics Campaign contributions from OpenSecrets District 8 Democratic incumbent Patrick Murphy unsuccessfully ran for re-election. He was defeated by Republican former U.S. Congressman Mike Fitzpatrick. In 2008, Obama carried this district with 54% of the vote. PA - District 8 from OurCampaigns.com Race ranking and details from CQ Politics Campaign contributions from OpenSecrets Polling District 9 Republican incumbent Bill Shuster successfully ran for re-election. He defeated Democrat Tom Conners and Independent Chad Clopper. PA - District 9 from OurCampaigns.com Race ranking and details from CQ Politics Campaign contributions from OpenSecrets District 10 Democratic incumbent Chris Carney unsuccessfully ran for re-election, losing to Republican nominee U.S. Attorney Tom Marino. In 2008, McCain carried this district with 54% of the vote. PA - District 10 from OurCampaigns.com Race ranking and details from CQ Politics Campaign contributions from OpenSecrets District 11 Democratic incumbent Paul E. Kanjorski unsuccessfully ran for re-election, losing to Republican Hazleton Mayor Lou Barletta. In 2008, Obama carried this district with 57% of the vote. Kanjorski faced Corey O'Brien and Brian Kelly