EN,  That's o.k., we disagree on a lot of things but we also agree on a lot of things.  I think what we often call voter suppression is actually lack of funds and people to work at polls; this is where Oregon's, Washington's, and Colorado's vote by mail really has its advantages.  A key word in your reply is "potential".  I think the courts, justice department, opposition political parties, watchdog groups, and the media are pretty good at ferreting out voter suppression and ending it.

Mostly, voter suppression is a democratic "us and them" wedge issue in my opinion.  Was the Florida Highway Patrol as an organization stopping black drivers or was it a rogue Trooper or two?  The Ohio incident you mentioned, was that state wide and has it gone to court?  Any prosecutions?  Obviously, they were found out if in fact true cases of voter suppression.

I would add suppressing 15 million non-registered, apathetic voters is pretty easy, its called self-suppression.