Republican legislative leaders have appealed a court ruling striking down new North Carolina constitutional amendments mandating photo identification to vote and lower caps on income tax rates.

The notice filed on Monday with the Court of Appeals challenges Friday’s decision by a Wake County judge voiding legislative directives to put the amendments on the ballot and voter approval of them in November.

Judge Bryan Collins ruled the 2017-18 General Assembly that approved the amendment referendums last year were illegally established because federal courts had declared legislative district boundaries illegal gerrymanders.

The ruling doesn’t specifically cancel a December law implementing the voter ID mandates, but the decision calls into question whether it will stand. GOP lawmakers say the ruling threatens the validity of laws approved over an 18-month period.