Wisconsin generally has grown but has lost its proportion in relation to other parts of the country. Of 435 congressional seats, each state is guaranteed one congressman. The remaining 385 are apportioned out according to population. Somebody will be out of a job, and his or her district will be divvied up among the survivors. Within state borders, the number of seats in the Senate and Assembly will remain the same, but none of the 33 senators or 99 representatives are guaranteed survival.
Borders can change radically enough to pit incumbent against incumbent.
The process can squeeze some of them out of office or force them to represent a politically hostile set of voters. Former state Rep. Lary Swoboda, who lived through three redistrictings in his legislative career, will be on the sidelines this time, but he still plans to enjoy the process as a spectator. Basically, in looking at themselves, legislators will be looking at how they can gain areas favorable to themselves. I enjoy that. And while it can be a battle of one political party against another, it more often is a battle of individuals, pitted against each other, and sometimes, even against their party.