DES MOINES, Iowa — An Iowa judge has struck down as unconstitutional large portions of a 2017 voting reform law challenged by a Hispanic civil rights group and an Iowa State University student.

The law requires voters to show certain forms of identification when voting at the polls, requires voters to provide an identification number on absentee ballot applications and allows county auditors to reject ballots if they believe signatures don’t appear to match a voter signature on record.

The League of United Latin American Citizens of Iowa and ISU student Taylor Blair sued Iowa Secretary of State Paul Pate in May 2018, challenging the law as unconstitutional saying it could lead to voter suppression.

Judge Joseph Seidlin said in a ruling filed Monday that the state may require a voter ID at the polls.

“The evidence presented simply did not demonstrate that the burden on young voters, old voters, female voters, minority voters, poor voters and voters who are Democrats to show an approved form of identification at the polls is appreciably greater than the rest of the population,” he said.

Seidlin did find troubling a provision of the law that prohibited election officials from issuing a voter ID card to voters with a driver’s license or a state-issued ID.

“All eligible, registered voters should be able to ask for and receive a Voter ID Card from their county auditor so that every voter can cast a ballot as easily as every other voter,” he said.

He also struck the signature match provisions saying they violate the equal protection clause of the Iowa Constitution.

The judge also makes permanent his earlier order that says Pate cannot require a voter ID number on absentee ballot applications.

A spokesman for Pate said he is preparing a comment in response to the ruling.

A spokesman for the Iowa Attorney General’s Office said lawyers will confer with Pate to discuss next steps.

Attorneys for LULAC and Blair didn’t immediately reply to a request for comment.