Governors who take office after the 2018 elections will be on hand to sign or veto redistricting plans following the 2010 census. At Politico, Doug Sosnik says:
This is the lost decade for Democrats. It was a lost decade because of our losses at the governors' races in 2010, and in order for us to have a much better shot at drawing fairer lines for the House of Representatives, we have to win these governors' races.
So, for me as a Democrat, there are 13 states in particular that I'm focused on in the 2018 governors’ races. But especially, these five: Michigan, Ohio, Pennsylvania, Wisconsin and Florida. If Democrats can win the governorships in these states and hold the one in Virginia, then we have a seat at the table at the redistricting coming up—we can't be politically gerrymandered in these big industrial Midwest states and Florida.
So those five states are critical for Democrats to not be shut out in the process in the next decade like we were in this current. There are eight other states that have the potential for Democrats to actually take control of all aspects of reapportionment so that we can draw lines that are more favorable to Democrats. This is the last huge, big opportunity for Democrats to be able to undo for the next decade the damage that was done in this decade.