Rick Santorum backed Arlen Specter over Pat Toomey in 2004. It was a tough race with Toomey mounting a credible, well-financed challenge. Toomey’s candidacy, by his own estimation, was one of the precursors to the Tea Party movement: The “battle for the heart and soul of the Republican Party” between big spending moderates and committed conservatives that was evident in 2004 may have inspired subsequent Tea Party efforts, Toomey suggested. Despite losing out on key endorsements from leading Republican figures in 2004, Toomey believes his primary campaign created a strong foundation for conservative activism that translated into victory in 2010....
