What is Gerrymandering?
Every 10 years, states redraw district lines based on population data gathered in the census. Legislators use these district lines to allocate representation in Congress and state legislatures. When redistricting is conducted properly, district lines are redrawn to reflect population changes and racial diversity. But too often, states use redistricting as a political tool to manipulate the outcome of elections. That’s called gerrymandering — a widespread, undemocratic practice that’s stifling the voice of millions of voters. (ACLU)
How Gerrymandering Impacts Your Vote
New York Times: Supreme Court Bars Challenges to Partisan Gerrymandering
Center for American Progress: Study of “How Partisan Gerrymandering Hurts Kids”