check Source multiple battleground states require voters to show photo identification at the polls ID if your state requires see current photo-ID legislation state-by-state according to Ballotopia Ballotpedia implemented the voter identification requirement voter-ID laws a signature and an oath voter ID laws voter ID laws 17 states 31 states map 33 states states controlled by Republicans. importance of voter ID laws voter ID law by state https://ballotpedia.org/Voter_identification_laws_by_state voter ID laws states 17 states