In his opinion, Roberts wrote that getting federal permission to change voting laws, violates "the fundamental principle of equal sovereignty" of the states. To which Richard Posner, a jurist appointed by President Ronald Reagan to the United States Court of Appeals for the Seventh Circuit in Chicago, said that he'd never heard of such a principle because there is no such principle.
When Roberts was a lawyer in Reagan's justice department, he wrote memos against the Voting Rights Act. When Shelby County v. Holder came to the court, Roberts couldn't resist striking down a lifelong obsession.
To review, there was politics involved in the decision as well as activist jurisprudence that conservatives use to howl against. There was an elevation of state's rights over the individual right to vote. There was inconsistency with the Arizona ruling. And there was ignorance concerning what really goes on as states remake voting laws.
Congress is the only answer here. A new Section 4 strengthening federal oversight into various state voting laws is necessary. In order to satisfy Roberts' concerns, put every state and jurisdiction under federal oversight so no one will feel singled out.
Not many things we do as citizens are more important than voting. If war is too important to be left up to the generals, voting is too important to be left up to the states.
In summary A new Section 4 of the Voting Rights Act strengthening federal oversight into various state voting laws is necessary.