HARRISBURG — Republican voters face an ideological clash in this spring's primary race to elect a new senator in the 20th District....Three of the five GOP candidates in the race clearly identify with different wings of the party.....At the same time, former Lehigh Valley congressman Pat Toomey endorsed candidate David Madeira, a Dallas chiropractor, as "the conservative in the race." Toomey emerged as a leader of the party's conservative wing during his unsuccessful challenge to U.S. Sen. Arlen Specter in 2004.
A third candidate, Russell Bigus, is forging his own set of ties. Bigus recently won an endorsement from Operation PaCleanSweep, the group that sprang up in the wake of the controversial legislative pay raise to mount an effort to unseat all incumbent lawmakers. Bigus is a school board director in Dallas.