MERCER — Republicans and Democrats are both fielding candidates in two out of three state legislative races in the May 15 primary election.

Mercer County Department of Elections and Voter Registration released listings this week for state candidates, following the March 13 deadline for return of petition packets. Candidates for state and federal government file their candidate documents in Harrisburg through the Pennsylvania Department of State.

Sue Ann Mulvey, of Sharon, is running for the Democratic nomination to represent the state Senate's 50th District, a seat now held by Republican Sen. Michele Brooks, who is running for re-election on the GOP ticket.

In the 8th state legislative district, incumbent Tedd Nesbit is the sole Republican candidate. Lisa K. Boiving-Learned is alone on the Democratic ballot.

There is no Democratic candidate for the 17th District seat now held by Republican Parke Wentling. No Republicans have filed to run against Democrat Mark Longietti.

Longietti, who has been in the state House since 2007, has never faced a general election opponent.

Three Republicans — U.S. Rep. Louis Barletta of Luzerne County, state Sen. James Christiana III of Beaver County and Joseph Vodvarka of Allegheny County — are vying for the right to run for U.S. Senate against incumbent Democrat Robert Casey Jr., who is running for a third term.

Republicans Laura Ellsworth and Paul Mango, both of Allegheny County, and state Sen. Scott Wagner of York County are seeking their party's nomination to run in the general election against Democratic Gov. Tom Wolf.

Congressional candidates have until March 20 to file their petition packets because of the state Supreme Court's gerrymandering decision. Under the congressional district map drawn by the court, Mercer County will be in the 16th District, represented by Republican incumbent U.S. Rep. Mike Kelly, of Butler County.

Kelly has served three terms in the House of Representatives from the 3rd District, which includes Mercer County. Democrats Robert Multari, Chris Rieger and Brian Skibo have announced their intent to seek their party's nomination heading into next week's filing deadline.

Pennsylvania Republicans, led by state House Speaker Mike Turzai of Allegheny County and state Senate President Joe Scarnati of Jefferson County, are contesting the redrawn congressional district map in federal court.

Jeff Greenburg, director of the Mercer County election department, said last week that he expects that the state would reschedule the primary into June if the U.S. Supreme Court nullifies the Pennsylvania Supreme Court map.

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Greenville home rule

The Mercer County Department of Voter Registration and Elections drew lots Wednesday for ballot positions in the May 15 Greenville Home Rule Commission election.

Candidates will be listed on the ballot in this order: Hal Johnson, Casey Shilling, Martha C. Johnson, Ben O. Beil, Paul J. Miller, Steve Thompson, Paul R. Hamill, Lisa M. Hamill, Sean A. Hall, Tracy Beil and Stephen A. Williams.