Casey looking tough to beat, with 16 months to go

Sen. Robert Casey Jr. D-Pa., speaks at the Democratic National Convention in Denver, Tuesday, Aug. 26, 2008. (AP Photo/Jae C. Hong)

July 10, 2011 11:32:08 AM PDT
Bob Casey may just have himself to beat next year when he seeks a second six-year term as Pennsylvania's now-senior U.S. senator.