democratic gerrymandering. > hasta la vista to gerrymandering. >> if you look at the districts, they're all sliced up. they run this way and that way and they run that way. it's drawing districts not based on a natural concentration of people, but to try to achieve some political end by manipulating the maps. >> gerrymandering boils down to packing and cracking. packing supporters into a small number of districts where their preferred candidates already win by huge margins, or cracking districts by scattering voters and diluting their influence. with advances in data crunching, maps can be manipulated with laser-like precision, winding down streets and carving out blocks to slice and dice the electorate. that's how we get the funny-shaped districts. >> you don't just naturally get a district called goofy kicking donald duck based on where people live.