This bill matters because it addresses the controversial practice of "mid-decade redistricting," where states redraw Congressional district maps more than once between the decennial censuses. This practice often occurs when a new political party gains control of state government, allowing them to draw new maps that favor their party, even if the initial maps were considered legal.

If this bill becomes law, it would bring more stability and predictability to Congressional election maps across the country, potentially reducing partisan gerrymandering efforts that can occur between census cycles. This means voters could expect their district lines to remain consistent for a full decade, rather than being changed multiple times for political advantage. If it doesn't pass, states would continue to have the power to redraw maps whenever they choose, outside of current constitutional or legal challenges, allowing for ongoing potential for mid-decade partisan manipulation.