was not close. Casey, despite being seen as somewhat vulnerable, went into election night with most analysts thinking he could win. Casey did win by more than expected, which can be traced to several factors. Casey trounced Smith in Philadelphia County, home of Philadelphia. Casey also won the surrounding collar counties of Bucks, Chester, Delaware, and Montgomery, which are seen as vital in statewide elections in Pennsylvania. Casey also performed well in Allegheny County, home of Pittsburgh. Casey also performed well in Erie. Casey also performed strongly in the Scranton area. Smith did well in rural counties, but it wasn't enough to overcome the lead Casey had built in the huge population centers. Casey was sworn in for his second term beginning at noon on January 3, 2013. See also 2012 United States Senate elections 2012 United States House of Representatives elections in Pennsylvania References External links Pennsylvania Department of State Campaign contributions at OpenSecrets.org Outside spending at Sunlight Foundation Issue positions at On the Issues Official campaign websites (Archived) Bob Casey, Jr. for U.S. Senate Tom Smith for U.S. Senate United States Senate Pennsylvania 2012