The text notes that it is illegal to draw election borders that purposefully exclude a group from power, or benefit a specific party, but it happens anyway because the law does allow boundaries to be drawn to benefit __________.
It happens anyway because the law does allow boundaries to be drawn to benefit the local populations.
Explanation:
Through the process of redistricting, the political leaders get their benefits secured by making the concerned authorities redraw the boundaries to ensure their reelection.
Though the law grants redistricting to benefit certain groups of people equally and to avoid exclusion or discrimination with a specific group of people, the candidates use the facility granted by law to secure their own political interests.