A panel of federal judges ruled on Friday that three of Texas's Congressional districts are illegal, violating the Constitution and the Voting Rights Act. The panel found that Republicans had used race as a motivating factor in redistricting.Judges Xavier Rodriguez and Orlando Garcia wrote the court's decision, which comes after a protracted and complex legal battle that began when the new districts were drawn in 2011, following the last Census."The political motive does not excuse or negate that use of race; rather, the use of race is ultimately problematic for precisely that reason—because of their political motive, they intentionally drew a district based on race in a location where such use of race was not justified by a compelling state interest," says the ruling.Politically-motivated redistricting is legal, but redistricting with an intent to reduce the influence of minority voters — either by "packing" those voters into a district, or "cracking" them among multiple districts — is not.In 2013, the Supreme Court struck down a key provision of the Voting Rights Act, which cleared the way for Texas to activate its controversial voter ID law and implement its redistricting maps without getting federal approval first. That's when a number of groups brought challenges to Texas Republicans' redistricting plans.Texas will now consider whether to appeal the federal court's decision to the Supreme Court.If the decision holds, the three Congressional districts will likely need to be redrawn, causing a ripple effect on the state's other districts.The decision could have far-reaching consequences for Texas politics and elections. Nina Perales is vice president of litigation for MALDEF, the Mexican-American Legal Defense and Educational Fund, which was counsel for Latino challengers to the redistricting plan.Perales explains that not only does the court's decision lay the groundwork for changes to the state's current redistricting plan, but it may also be a step toward Texas being ordered back under federal supervision of its elections, as a remedy for intentional discrimination in its redistricting plan.This federal court's decision "hopefully will allow the court to put Texas back under federal supervision because it's clear now after the warnings in Texas voter I.D. and Texas redistricting that Texas needs to be under federal supervision for its voting changes," says Perales.Two of the three districts found to be illegal are held by Republicans; the third, Texas's 35th district, is held by Democrat Lloyd Doggett. As the Austin American-Statesman explains, the panel said that District 35: