It's easy to google voter suppression.  Try it.  Here'a a quotation from the Wikepedia article re: voter fraud and voter suppression...

"Often, voter fraud is cited as a justification for such laws even when the incidence of voter fraud is low. In Iowa, lawmakers passed a strict voter ID law with the potential to disenfranchise 260,000 voters. Out of 1.6 million votes cast in Iowa in 2016, there were only 10 allegations of voter fraud; none were cases of impersonation that a voter ID law could have prevented. Only one person, a Republican voter, was convicted. Iowa Secretary of State Paul Pate, the architect of the bill, admitted, "We've not experienced widespread voter fraud in Iowa."[30]"  So really, bill, let's not be silly here...Voter fraud is NOT a problem, voter suppression IS.
regards, Gary Crum