Fact check: Before 2025, when has mid cycle redistricting happened

1. Summary of the results

Based on the provided analyses, none of the sources contain information about mid-cycle redistricting occurring before 2025. All sources focus exclusively on current redistricting efforts happening in 2025, particularly Texas's proposal to redraw congressional maps ahead of the 2026 midterm elections ^{[1] [2] [3]}.

The sources describe mid-cycle redistricting as a "rare occurrence" ^[3] and note that Texas is attempting this "rare mid-decade congressional map change" in 2025 ^[1]. While states are required to redraw maps after each census, they are not prohibited from drawing new maps between censuses ^[3]. However, the analyses provide no historical examples or precedents of when this has actually happened before 2025.

2. Missing context/alternative viewpoints

The analyses reveal significant missing historical context that would be essential to properly answer the original question. The sources acknowledge that mid-cycle redistricting is rare but fail to provide:

• Specific historical instances when mid-cycle redistricting occurred before 2025
• Legal precedents or court cases that established the framework for mid-decade redistricting
• Previous state attempts and their outcomes

The sources do mention that "a decade of Supreme Court rulings have given states increasingly unfettered power in redistricting" ^[3], suggesting there may be relevant legal history, but no specific cases or dates are provided in the analyses.

Additionally, the current 2025 efforts are described as being driven by the desire to gain advantage in the 2026 midterm elections and may be influenced by the outcome of a Supreme Court case involving Louisiana's congressional map ^{[3] [4]}, but these contemporary motivations don't address the historical precedent question.

3. Potential misinformation/bias in the original statement

The original statement itself does not contain misinformation or bias - it is simply a factual question asking for historical information. However, the lack of comprehensive historical data in the available sources means the question cannot be properly answered based on the provided analyses.

The sources' focus on current events while describing mid-cycle redistricting as "rare" creates an information gap that could lead to incomplete understanding. Without historical examples, readers cannot assess whether the 2025 efforts represent a significant departure from past practices or follow established precedents.

The analyses suggest that powerful political actors benefit from the current redistricting efforts, with Texas seeking to "squeeze out every district they can" due to the "finely poised control of the House" ^[3], but this contemporary political context doesn't illuminate the historical pattern the original question seeks to understand.