Pennsylvania is one of just nine states that still bars independent voters from participating in primary elections — and the pressure to change that is building fast.
Every spring, Pennsylvania holds primary elections that determine who gets to run for office in November. In a state this divided — one governor’s race, all 203 state House seats, and 17 congressional districts on the ballot in 2026 — those primaries are often the most consequential elections of the year. And more than a million registered voters aren’t allowed to participate in them.
KEY FIGURES
1.4M
independent voters excluded from primaries
77%
of PA voters support open primaries (F&M, 2024)
$75M
taxpayer cost of primaries each year
A system built for two parties
Pennsylvania operates what’s called a closed primary system. That means only registered Democrats can vote in Democratic primaries, and only registered Republicans can vote in Republican primaries. If you’re one of the roughly 1.4 million Pennsylvanians registered as independent or unaffiliated, you are barred from participating — regardless of how long you’ve lived in the state, how many local elections you’ve voted in, or how much you’ve paid in the taxes that fund those elections.
The state does allow all registered voters to weigh in on ballot referenda or special elections that happen to fall on the same day. But for the partisan primaries that decide who runs for Congress, the state legislature, and the governorship? That door is closed.
Pennsylvania is one of only nine states that still operates this way.
Who gets shut out — and why it matters
The independent voter population in Pennsylvania isn’t a fringe group. It’s the fastest-growing segment of the electorate. Unaffiliated registration has climbed steadily for years and now represents nearly 16% of all registered voters in the state. These are not people who are disengaged from politics — they’re people who have consciously chosen not to affiliate with either major party, and they’re being told their choice has a cost.
“More than one out of every seven registered voters are barred from having a say in a critical part of the electoral process — despite the fact that primaries cost local and state governments roughly $75 million, paid from the pockets of every Pennsylvanian.”
— Ballot PA
The systemic consequences run deeper than individual disenfranchisement. As competitive general election districts become rarer, primaries increasingly become the only real election a candidate faces. In heavily partisan districts — and Pennsylvania has plenty — the winner of the primary is functionally the winner of the seat. That means the preferences of a small slice of the electorate, the registered partisans who turn out for primaries, drive outcomes that affect everyone.
The result is a feedback loop: candidates who need only to win their party’s base have little incentive to appeal beyond it, which sharpens partisan edges, which deepens polarization, which makes reform harder. Independent voters watch from the sidelines — having paid for the election they weren’t allowed to vote in.
The legislative fight in Harrisburg
Reform advocates have been pushing to change this for years, and the current legislative session has produced the most active push yet. Two bills are alive in the General Assembly that would allow unaffiliated voters to choose either a Democratic or Republican ballot in primary elections.
ACTIVE LEGISLATION — 2025–2026 SESSION
HB 280
Introduced by Rep. Jared Solomon (D-Philadelphia). Would allow unaffiliated voters to select either party’s primary ballot. Needs to clear the State Government Committee to advance.
SB 400
Companion bill introduced by Sen. Dan Laughlin (R) with bipartisan co-sponsorship in the state Senate. Mirrors the House bill in its core provisions.
Public support for the reform is hard to dispute. A Franklin & Marshall poll from August 2024 found that 77% of registered Pennsylvania voters favor opening primaries to independent participation. Five of Pennsylvania’s most recent governors signed a letter endorsing the reform in 2023.
And yet both party leaderships have been studiously noncommittal. Democratic House leadership said the caucus is “open to considering any election reforms that make it easier for voters to cast a ballot.” Republican Senate leadership said discussions are “ongoing.” Neither has committed to bringing the bills to a floor vote.
“In Harrisburg, maintaining control of your chamber is the most important thing.”
— State Sen. Lisa Boscola (D-Lehigh), co-sponsor of SB 400
The dynamic Boscola is describing is the central tension in this debate. Leaders in both parties privately understand that opening primaries could shift their electoral math in unpredictable ways. Independent voters, by definition, don’t sort neatly. That uncertainty, more than any principled objection, is what’s keeping reform bottled up in committee.
Meanwhile, reformers have also taken the fight to the courts. A coalition including civic activist David Thornburgh and radio host Michael Smerconish filed a petition directly to the Pennsylvania Supreme Court in 2025 arguing that the closed primary system violates the state constitution’s guarantee of free and equal elections. A separate lawsuit filed by Ballot PA Action makes a similar constitutional argument, and is currently awaiting a response from Commonwealth Court.
Nothing will change for the May 19, 2026 primary. But the combination of active legislation, live litigation, 77% public support, and a governor’s race on the November ballot makes this one of the most watched electoral reform fights in the country right now.
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