Two Republicans have joined as they fight to replace outgoing .
, the Mt. Lebanon businessman who unsuccessfully ran for Allegheny County chief executive and Bethel Park native Sue Means will go against Mustio . No Democrats filed, meaning the primary likely will decide the winner of the seat.
Mustio is also seeking re-election in the state house.
Means, a longtime grassroots activist and educator, touted her 27 years of experience in advocating limited government and her commitment to being a "citizen legislator" rather than a career politician.
"We need legislators whose main goal is to serve the people, rather than pursue a career," she said in a statement. "That’s why I have pledged to serve no more than two terms in Harrisburg and not to accept a public pension for my service."
Means also said she will push to return Pennsylvania's General Assembly to a part-time body. Formerly a neurosurgical nurse at Children's Hospital of Pittsburgh, Means began her grassroots career as a leader in the successful effort to pass a statewide homeschooling law.