How have gun violence trends changed over time in states that switched party control?

Checked on January 22, 2026
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Executive summary

States that have changed party control show no single, uniform trajectory in gun violence; broader patterns in the data suggest regional differences, the strength of state-level gun laws, and non‑legislative factors tend to matter more than the party label alone, but existing public-data analyses find that cities in states that vote “blue” have experienced larger declines in gun homicide compared with those in “red” states in recent years [1] [2]. National trend data show firearm homicides peaked in the pandemic years and have since fallen, while firearm suicides remain high, complicating any simple partisan explanation [3] [4] [5].

1. What the long-term data actually show about trends, independent of politics

Two decades of federal analyses reveal clear long-term shifts: nonfatal firearm victimization rates fell substantially from the 1990s through 2019 and the rise in homicides around 2020 has receded in subsequent years, but suicide by firearm has not fallen in the same way and remains a large share of gun deaths (BJS synthesis 1993–2023; CDC‑based analysis) [3] [4]. These are national patterns that provide the backdrop for any state‑level shifts, meaning a state flipping a legislature or governor must be read against changing national baselines, not as an isolated experiment [3] [4].

2. Blue vs. red: what cross‑state and city comparisons find

Analysts who compare jurisdictions across party lines report that, after controlling for city size, cities in blue states were consistently safer from gun homicide than peers in red states from 2015–2023, and red‑state cities experienced larger increases in gun violence during 2018–2021 (Center for American Progress analysis) [1]. Public‑health research likewise associates weaker gun laws and higher ownership—attributes more common in many Southern and Mountain West states—with higher gun death rates, while Northeast states with stronger laws show lower rates (Johns Hopkins; CDC summaries) [2] [3].

3. What changes when a state “switches” partisan control — the evidence gap

The body of sources supplied does not include systematic studies that isolate the causal impact of a state switching party control on gun violence trends; most research compares states by current law strength, ownership, or regional characteristics rather than by the timing of partisan turnover (limitation: no direct study provided) [1] [6] [7]. Therefore, while plausibly reforms enacted after a political flip (or rollbacks after a flip the other way) can affect risk over time, the supplied reporting does not allow a definitive, causal statement tying party switches themselves to consistent rises or falls in gun violence.

4. Mechanisms that could produce change after a flip — laws, enforcement, and spillovers

When control shifts, the levers that plausibly move violence are concrete: passage or repeal of background‑check expansions, safe‑storage laws, red‑flag statutes, and carry rules, plus funding for violence‑intervention programs; analyses from advocacy groups and law‑scorecards consistently find stronger laws correlate with fewer gun deaths, though causation is debated and trafficked guns from neighboring states can blunt local law effects (Everytown, Giffords, Johns Hopkins, ATF notes) [6] [7] [2] [8]. Conversely, critics warn that advocacy analyses can conflate correlation with causation and sometimes underplay enforcement and social determinants such as poverty and policing (counterpoint summarized from debate in sources) [6] [9].

5. Political narrative, data selection, and hidden agendas

Much of the public debate simplifies complex dynamics into “crime up under Democrats” or “freedom under Republicans”; think tanks and advocacy groups often highlight frames that support their policy goals—Progressive groups emphasize law strength and geographic patterns in declines [1] [7], while gun‑rights outlets stress second‑amendment protections and question policy impacts [9] [10]. Analysts relying on media‑compiled incident databases like Gun Violence Archive or selective FBI submissions warn about reporting lags and coverage bias, meaning short‑term claims tied to partisan control can be amplified without full context [1] [4].

6. Bottom line and what is still unknown

Available evidence shows that state policy strength, geography, ownership levels, trafficking flows, and non‑legislative interventions more directly track gun death rates than a simple label of party control, and comparative recent work finds blue‑state cities fared better than red‑state peers from 2015–2023 [1] [2] [3]. However, because the supplied sources do not include causal studies focused specifically on states immediately before and after party switches, it cannot be concluded from these reports alone that changing party control is a reliable predictor of rising or falling gun violence without examining the concrete laws, budgets, and regional spillovers enacted after the switch (limitation: causal gap) [1] [6].

Want to dive deeper?
Which specific state-level gun laws enacted after party control flips have been linked to measurable changes in gun homicides?
How do gun trafficking and interstate flows blunt the effects of strict gun laws in states that change party control?
What peer‑reviewed causal studies exist that analyze the effect of political turnover on public‑safety outcomes, including gun violence?