RALEIGH, N.C. (AP) — A federal lawsuit challenging North Carolina’s photo voter identification law is set to go to trial Monday, with arguments expected to focus on whether the requirement unlawfully discriminates against Black and Hispanic citizens or serves legitimate state interests to boost public confidence in elections.

The non-jury trial in Winston-Salem begins more than five years after the state NAACP and several local chapters sued over the voter ID law enacted by the Republican-dominated General Assembly in late 2018.

This litigation, along with similar lawsuits in state courts, delayed implementation of the requirement until last year’s municipal elections. The 1.8 million voters who cast ballots in the March primaries also had to comply. State election data showed fewer than 500 provisional ballots cast because of ID-related issues in the primary ultimately didn’t count.