Lawyers for the state of Texas today began presenting evidence in Washington to convince a special three-judge panel to approve the state’s intent to require registered voters to show photo identification at the polls.

Texas sued the U.S. Justice Department in Washington’s federal district court in January, seeking a declaration from the court to allow the state to implement a photo ID law that critics call one of the most restrictive in the country. Attorney General Eric Holder Jr. has made fighting voter discrimination a hallmark of the department’s Civil Rights Division.