LAWRENCE, Kan. (AP) — Attorneys who filed a federal lawsuit seeking to overturn a Kansas voter registration law are seeking to make the suit a class action.

Kansas Secretary of State Kris Kobach suspended the pending registrations of more than 36,000 would-be Kansas voters earlier this year until they provide proof of insurance. Former Lawrence Rep. Paul Davis and William Lawrence, an attorney in his law firm, filed a suit September 30th seeking a preliminary injunction.

They filed an amendment Tuesday for class action status.

The Lawrence Journal-World reports the plaintiffs are two Douglas County residents who applied to register to vote in December and March. Kobach filed a motion last week saying the lawsuit was moot because he had registered the two after pulling their birth certificates from Kansas Vital Records.