The Justice Department has announced a lawsuit seeking to prevent Texas from enacting the voter ID law that helped spark the recent U.S. Supreme Court case over voting rights. A federal court last year ruled the Republican-controlled statehouse in Texas discriminated against people of color in its redrawing of political maps for congressional and legislative districts ahead of the 2012 election. But the ruling was struck down in June when the Supreme Court invalidated a critical portion of the 1965 Voting Rights Act that required nine states with a history of racial discrimination to obtain federal approval for changes to voting rules. Texas began enforcing the voter ID law after the Supreme Court decision came down.