>> greta: i take it if you are like a democratic or republican and you are doing the redistricting you redistrict it in your congress so you create districts that will more likely get elected to your party, you the lines? >> right there are sophisticated programs to do it. some states like florida and california have moved in the direction of nonpartisan redistricting. vast majority of states do it on purely partisan lines which means he who controls the legislature draws the -- draws the lines and controls who wins elections. >> greta: i thought it was surprising that california didn't pick up any new districts. >> population growth has slowed. the growth is in the south and southwest in states that the republicans have been surging in and where the republicans republican candidate for president is more likely than not, barring some unforeseen circumstance to do very well. which is why obama and the democrats are focusing heavily on new constituencies, like