“Paul Ryan and the Republicans could have cleaned this up.”
Each State is responsible for removing illegal and dead voters from their voting roles. This is not something the Feds can do.
The Feds are sure doing fine job of preventing it. Fed Judges regularly prevent any corrections in registrations, lot of Voter ID implementations of Voter ID requirements ruled illegal or minority voter repression.
Wrong!
Motor voter and the act are federal laws mandating clean up.
Republicans never enforced them for fear of being called racist.