President Trump on Tuesday, Aug. 13, called for provisions requiring valid identification to vote, insisting Voter ID plays a “very strong part” in the deal on election security.

“No debate on Election Security should go forward without first agreeing that Voter ID (Identification) must play a very strong part in any final agreement. Without Voter ID, it is all so meaningless!” He tweeted.

Last month, the president also threw his support behind using paper ballots as a backup, saying it is “old fashioned but true!”

Debates over voter ID have not yet seen their end. Proponents see increasing requirements for identification as a way to prevent fraud and increase public confidence in the election process. Opponents said that would create hurdles for people who lack IDs and impose unnecessary costs.

According to the NCSL (National Conference of State Legislatures), there are 35 states that have laws requesting of requiring voters to show some form of identification at the polls.

A study released by the Brennan Center for Justice at NYU School of Law on Tuesday showed that 12% of voters, or around 16 million people, will vote on paperless equipment in November 2020, reported The Associated Press.

“We should replace antiquated equipment, and paperless equipment in particular, as soon as possible,” the report recommends.

Congress is still grappling with how to improve election security. The House passed legislation in June that requires the use of paper ballots and gives more funding for election security. But Senate Republicans have blocked votes on the legislation, saying there is no need for such federal intervention.