PA SENATE PRIMARY: The high profile primary in Pennsylvania is between current Democratic State Treasurer Bob Casey and his two party challengers, a Philadelphia Attorney, Alan Sandals, and UArts History Professor Chuck Pennacchio. Republican Senator Rick Santorum is running unopposed.

Democratic challenger Casey is Pro-Life, but a serious challenger for Santorum. However, Sandals, and Pennacchio would be more traditional Democratic challengers. Santorum is running on the traditional Republican platform.

BALLOT QUESTION: In Philadelphia, voters will decide whether to authorize police to use surveillance cameras to combat criminal activity and whether to establish the city's first independent ethics board to investigate and act on complaints involving city employees.

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THE RUN DOWN
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U.S. SENATE: The three-way race for the Democratic nomination features state Treasurer Bob Casey, Philadelphia pension lawyer Alan Sandals and Philadelphia college professor Chuck Pennacchio. Incumbent Rick Santorum is unchallenged for the Republican nomination.

GOVERNOR: Gov. Ed Rendell is unopposed for the Democratic nomination. Former Pittsburgh Steeler Lynn Swann is unopposed for the Republican nomination.

LIEUTENANT GOVERNOR: Incumbent Catherine Baker Knoll is opposed in the Democratic primary by Allegheny County Recorder of Deeds Valerie McDonald Roberts, Harrisburg political activist Gene Stilp and Bangor businessman William A. Hall III. Jim Matthews, a Montgomery County commissioner, is unopposed in the GOP primary.

U.S. HOUSE: All 19 incumbents are seeking their parties' nominations for re-election, along with prospective opposition-party nominees in most districts. Only two incumbents are opposed in the primary: Rep. Don Sherwood is challenged for the Republican nod in the 10th District by Kathy Scott, a former guidance counselor. In the 14th District Democratic primary, Rep. Mike Doyle faces high-school teacher Mike Isaac.

STATE LEGISLATURE: Sixty-one incumbents face opponents in the Democratic and Republican primaries, the most since 1980. Nominees also are being picked for 30 open seats resulting from lawmaker retirements amid voter disenchantment over the now-repealed legislative pay raise.