How congressional redistricting works

C-SPAN conducted a live interview with Shawn Donahue about how congressional redistricting works, and how Democrats and Republicans have used it over the years. “Generally, congressional districts are redrawn in the year following the decennial census. This has been the case for about the last 60 years,” he said. “The reason I say that, rather than kind of going back to the founding, is that there was a period of time in the country where you did not have as much redistricting. Because until the 1960s, there was not a requirement that the districts be of the same size as far as population.”