- After the 2010 Census, Republicans now entirely control the redistricting process in states with 202 out of the 435 congressional districts. All this is to say that Republicans will have a greater influence in map-making than any time in the modern history of redistricting. http://www.nationaljournal.com/columns/off-to-the-races/forecasting-the-dynamics-for-2012-20110228 3 comments politics