Grok 的答案

共和党从2010年才开始

Q: Which party has used gerrymandering the most before 2010?

Key Historical Context (Pre-2010)

• Democrats dominated many state legislatures for decades after the New Deal era and through much of the late 20th century, especially in the South and industrial states. This gave them more opportunities during post-census redistricting cycles (e.g., 1970s–2000s).
• Republicans gained ground later, especially after the 1994 "Republican Revolution," but still lagged in unified state control until 2010.