The Supreme Court has ruled that judges are powerless to review partisan gerrymandering. But courts can still enforce the Voting Rights Act provisions that protect minorities' voting power.

As Texas Republicans move ahead with redistricting to protect or even expand the GOP’s slim majority in the US House, Democratic-run states, led by California, are pushing forward with their own efforts to draw new maps and add Democratic seats.

Texas state legislators fail to make quorum again on Tuesday as Democrats avoid crucial vote to redraw congressional map