Lawmakers in Missouri have approved a new congressional map said to heavily favor Republicans, while also enacting tighter rules on initiative petitions. Opponents are now considering a referendum to counter what they see as a partisan shift in the state’s political representation.

California’s redistricting story began when lawmakers drew maps to protect their seats and power. Today, those lines are in the hands of an independent commission—setting the stage for November’s high-stakes elections.

Sen. Adam Schiff (D-Calif.) is challenging Republicans’ decision to redraw congressional districts in Texas, arguing that they view it as a near-certain strategy to hold onto power. While California also adjusts its districts, Schiff says Democrats have already supported legislation that would end gerrymandering nationwide.

California Governor Gavin Newsom has introduced a redistricting plan designed to counter gerrymandering efforts attributed to former President Trump in Texas. The measure is now on its way to voters, highlighting the ongoing national debate over how electoral lines are drawn.

Texas Republicans have secured the quorum they need to vote on a controversial new district map, following encouragement from President Donald Trump. The proposed plan aims to defend the GOP’s slim majority in the U.S. House during the upcoming midterm elections.