States and local governments have an interest in their voter rolls being accurate. Voters have an interest in remaining registered to vote. These interests collide in Husted v. A. Philip Randolph Institute.
This issue the Supreme Court will decide in this case is whether federal law allows states to remove people from the voter rolls if the state sends them a confirmation notice after they haven’t voted for two years, they don’t respond to the notice, and then they don’t vote in the next four years.
While Ohio is being sued in this case twelve other states use a similar scheme.