Texas' Voter ID law is going before a federal court in Washington, beginning today.
The trial is expected to last all week and will determine whether the state can implement the law requiring voters to show photo identification before casting a ballot.
The state claims the law will prevent voter fraud and is seeking to persuade a three-judge panel to uphold the statute. The Justice Department and a slew of intervening groups say the law disproportionately affects minority voters and violates the federal Voting Rights Act.