 In 2006, Democrat Bob Casey Jr. received 54% of its vote when he unseated incumbent Republican US Senator Rick Santorum and Ed Rendell received 56% of the vote against Lynn Swann.The conservative tendencies of the county were again reestablished in 2008 when then-Senator Obama lost the county vote 48% to John McCain's 51%.This was followed in 2010 with U.S. Senate candidate, Republican Pat Toomey, receiving 59% to 41% for Democrat Joe Sestak.