The attorney defending Texas over its controversial voter ID law faced a tough room during closing arguments Friday, as federal judges grilled him and one claimed the record shows the law puts a "disproportionate" burden on minorities. 

The judges assumed a skeptical tone as they wrapped up five days of trial, suggesting the state may face a heavy lift in persuading the three-judge panel to overrule the Justice Department -- which concluded in March that the Texas law requiring voters to have certain ID to cast a ballot is illegal by disproportionately disenfranchising Hispanic voters.

At the beginning of session Friday, Texas' attorney John Hughes said his closing arguments would last 20 minutes. But the argument turned into a back-and-forth lasting more than an hour, as judges frequently interrupted Hughes to pose various questions. Hughes repeatedly rejected the notion that the Lone Star State's voter ID law, passed last year, would affect minorities any differently than it would affect white voters.