versus jubelirer. in that case, several of the districts in inner city philadelphia were heavily, heavily democratic, but as you tried to, on the periphery crack those is a parties you tried to provide about 55%, 60% republican districts. right? so you have efficient districts for your friends and inefficient districts for your adversaries. right? that's typically the way a partisan gerrymander works. if you go in that direction, of course, there are risks. right? a small shift in voter preferences, which is what happened in pennsylvania, your party can lose a whole a good number of seats. a bipartisan gerrymander is typically done where you make seats that are safe for both parties. so the republican get safe seats. the democrats get safe seats. if the state is half democrat, half republican, half the seats will be heavily democrat. half the seats will be heavily republican. often that also involves the strategic placement of incumbents. you make sure incumbents are protected. and an incumbent protect