Another blunder on their part. They live under the false impression that all states are above board in their election processes. The day this ruling was put forth, all the states that are GOP controlled immediately started introducing bills that would restrict voting laws for minorities. This is certainly another travesty of justice by the SCOTUS on the same level as their ruling to make corporations same status of individuals (except that corporations are allowed to skirt paying taxes due to their own legislature allowing them loopholes, kickbacks, and exclusions, and individuals are not - also individuals who do not pay their taxes go to jail, corporations cannot be punished)
The congress has the duty to now reinstate the law of 1965, or write a new one that will stop Republican run states from passing laws that restrict voting rights for certain people. Of course we know they will not do that, and their debating over it will take around 20 years to reach any kind of solution, and another 20 to debate those solutions.
The only logical (and fair) solution is to make all states be required to have congressional approval when they try to pass laws restricting any minority from voting. The idea of allowing ANY state the right to pass laws that discriminate for any reason is ludicrous in itself. We cannot call ourselves the "United States of America" when we have division amongst the states that do what ever they want to whomever they want whenever they want.
Congress is broken by corruption and so is the Supreme court.