Which states have seen a decrease in partisan gerrymandering since implementing independent commissions?

Checked on September 23, 2025
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1. Summary of the results

The analyses provided do not offer a direct answer to the question of which states have seen a decrease in partisan gerrymandering since implementing independent commissions [1] [2] [3] [4] [5] [6] [7] [8]. However, some states have been identified as having independent redistricting commissions, such as Michigan [2] and California [3] [2]. Additionally, it is mentioned that over a dozen states have adopted commissions to draw their state's district lines [5]. While the analyses do not provide specific information on the decrease in partisan gerrymandering, empirical research has found that commissions improve partisan and racial fairness somewhat [5].

  • Key points from the analyses include:
  • The introduction of the Redistricting Reform Act of 2025 to combat partisan gerrymandering [1]
  • The success of Michigan's independent redistricting commission in preventing partisan gerrymandering [2]
  • California's independent redistricting commission and the consideration of sidestepping it to redraw congressional districts in favor of Democrats [3]
  • The impact of partisan control over redistricting on political power in Congress [4]
  • The use of independent redistricting commissions as a way to prevent partisan gerrymandering [5]

2. Missing context/alternative viewpoints

The analyses lack specific information on which states have seen a decrease in partisan gerrymandering since implementing independent commissions [1] [2] [3] [4] [5] [6] [7] [8]. Furthermore, the effectiveness of independent redistricting commissions in preventing partisan gerrymandering is not universally agreed upon. Some sources mention the potential for these commissions to improve partisan and racial fairness [5], while others discuss the consideration of sidestepping these commissions for political gain [3]. Alternative viewpoints may include:

  • The potential benefits and drawbacks of independent redistricting commissions
  • The impact of partisan control over redistricting on political power in Congress [4]
  • The role of empirical research in evaluating the effectiveness of independent redistricting commissions [5]

3. Potential misinformation/bias in the original statement

The original statement assumes that independent commissions are effective in decreasing partisan gerrymandering, but the analyses provided do not offer conclusive evidence to support this claim [1] [2] [3] [4] [5] [6] [7] [8]. This framing may benefit those who advocate for the implementation of independent redistricting commissions, such as Democrats who are considering countering the redistricting attempt by the Texas GOP [2]. However, it is essential to consider the potential biases and limitations of the sources, including the fact that some analyses are based on empirical research [5] while others are focused on specific states or political parties [2] [3].

Want to dive deeper?
What are the key characteristics of effective independent redistricting commissions?
How have states like California and Arizona reduced gerrymandering through independent commissions?
Can independent commissions completely eliminate partisan bias in redistricting?
What role do independent commissions play in ensuring minority representation in state legislatures?
Which states have seen the most significant decreases in partisan gerrymandering since implementing independent commissions?