And although it is the Republican-controlled legislature asking the Supreme Court to recognize a theory of near-complete power for state legislatures over federal elections,
Princeton University professor Sam Wang suggests that a ruling for the legislature in this case would likely benefit Democrats more. Blue and swing states, Wang explains, have been more likely to check partisan gerrymandering through a governor’s veto, the state courts, or independent redistricting commissions. A decision in favor of the legislature, Wang says, would allow those blue and swing states to draw new maps that are more favorable to Democrats. The 19 states where Republicans already control redistricting have less to gain from the Supreme Court’s ruling, Wang concludes, because those states have already drawn maps to benefit Republicans.