Have you found anything credible? All I can find with random clicks are lots of very long youtube videos that don't ever seem to get to the point and links to voting laws in particular states without any context.

It gives the impression of there being plenty of evidence, but non of the items I looked at actually upheld what they claim.

Do we know who runs that site? It could be accidental but it looks like a very low information way to barrage one's opponents and avoid specific criticism