Democrats Regain Voter Registration Ground in Seven States

Democratic voter registration, which cratered in seven battleground states after the 2024 election, has rebounded over the past year, according to an NBC News Decision Desk analysis of voter file data from the progressive data firm TargetSmart. The analysis, conducted by Marc Trussler and Jane C. Timm, found Democrats either reversed or slowed their registration losses in all seven states examined ahead of this fall's midterms.

Which States Did NBC News Analyze?

The Decision Desk looked at voter files in Arizona, Maine, Nevada, New Hampshire, New Jersey, North Carolina and Pennsylvania, NBC News reported. The outlet chose these seven because they were among the closest states in the 2024 presidential election and because each registers voters by party, making registration trends measurable over time. Six of the seven — all but New Jersey — are hosting Senate or governor races this year; New Jersey is home to a competitive House contest, according to the analysis.

How Much Ground Did Republicans Gain After 2024?

From late 2024 through late 2025, Republicans improved their voter-registration margin over Democrats in all seven states, NBC News found. The swing was largest in Pennsylvania and North Carolina, where Republicans posted a net registration gain of roughly 100,000 voters in each state over that stretch, according to the analysis. Those two states also happen to carry some of the highest-profile statewide races on this year's ballot.

Where Have Democrats Reversed the Decline?

The trend flipped between late 2025 and the middle of 2026. In five of the seven states — Arizona, Maine, Nevada, New Jersey and Pennsylvania — Democrats added more new registrants on net than Republicans did over that period, per the NBC News analysis. In the remaining two states, New Hampshire and North Carolina, Democrats did not overtake Republicans but did slow the rate of decline, the analysis found. None of the five states that saw a Democratic reversal has fully erased the registration losses from the year before, according to the report.

The numbers

• ~100,000: Net Republican registration gain in Pennsylvania from late 2024 to late 2025, per TargetSmart data cited by NBC News.
• ~100,000: Net Republican registration gain in North Carolina over the same period, according to the same analysis.
• 5 of 7 states: Where Democrats outregistered Republicans on net between late 2025 and mid-2026, per the Decision Desk findings.
• 2 of 7 states: Where Democrats slowed but did not reverse the Republican registration advantage — New Hampshire and North Carolina.

What Changed Since Late 2025?

NBC News attributes the shift to two overlapping forces: a building backlash to President Donald Trump over the course of the year and a series of competitive Democratic primaries that forced the party to argue publicly over its direction after the 2024 loss. The analysis does not quantify how much each factor contributed, but notes the registration turnaround coincided with both developments.

Does Party Registration Predict the 2026 Vote?

Not entirely. NBC News is explicit that "party registration is not 100% predictive of vote choice," meaning a voter who registers with a party does not automatically cast a ballot for that party's candidates. The analysis frames the registration data as one indicator among several rather than a standalone forecast, describing the recent movement as giving Democrats "another reason for optimism" heading into the fall without asserting it determines outcomes.

What Do These Voter-File Terms Mean?

• Voter file: A state-maintained list of registered voters that typically includes party affiliation, address and voting history, used by campaigns, parties and data firms to track registration trends.
• TargetSmart: A political data firm that compiles and sells voter file analytics; NBC News describes it as a progressive firm, meaning it generally works with Democratic-aligned clients, though its underlying voter file data is drawn from public state records.
• Registration margin: The gap between the number of voters registered with one party versus another in a given state; a shrinking margin for one side does not necessarily reflect an equivalent swing in actual votes cast.
• Unaffiliated voters: Registrants who do not choose a party label. NBC News reports that this pool continued to expand in many of the seven states even as Democrats clawed back registrants, which the analysis links to "growing distrust of both major parties."

The full breakdown of state-by-state figures, including the unaffiliated-voter trend lines, is available in NBC News' original analysis.