Trump should announce he is doing a MAJOR INVESTIGATION of vote fraud and will be demanding minimum jail terms for offenders.
He may not even get Congress to go along, but say it anyway, and keep repeating it. I don;t think you even NEED congress to pass anything- it is already illegal to, um..., break the voting laws.
Just putting it into their heads will cut down on some of it. and actually vigorously enforcing it will take care of more.
Just very publicly jail a few people- and announce you are looking for more.
NOT INNOCENT PEOPLE, mind you, real vote fraud is easy to find. Jail some of them. The days of a small ‘fine’ and 3 months probation are over.
The days of getting a standing ovation after being convicted should be over too. You have to make them AFRAID to do it. They clearly are not.