Democrats argued Friday that a Republican plan for redrawing districts in Texas to create more winnable U.S. House seats for the GOP is not only a power grab by President Donald Trump but also an attack on Black and Hispanic voters that violates the landmark federal Voting Rights Act.

Democratic lawmakers are trying to build a case that Republicans in Texas have engineered a rushed and unfair process for redrawing the state’s congressional districts.

Texas Republicans are powering ahead with an aggressive strategy backed by President Donald Trump to seize control of multiple Democratic seats in next year’s critical midterm: redrawing the state’s congressional map in favor of more GOP seats.