Both of these things absolutely should be illegal . <| sep |> Redrawing is necessary because every 10 years the census is updated and the population of each state changes . The districts need to change to account for this change in population . Elections are not rigged , either . There ' s too many checks in place to prevent it against voter fraud , especially . Also your assuming all the congressmen work together against the people . Im sure if one congressmen was caught gerrymandering illegally by a politician of a different party , he ' d be reported ASAP . Also keep in mind that ALL district redrawings must be approved by the State ' s Supreme Court , and this is why illegal gerrymandering does not occur very often at all .