The American Civil Rights Union wants local election officials to clean up voter rolls in Mississippi. Last Friday, the group filed suit against two counties that have more registered voters than the Census says they have voting-eligible citizens.The ACRU is stepping into the breach left by the Civil Rights Division of the U.S. Justice Department. Under Assistant Attorney General Thomas Perez (now nominated to head the U.S. Department of Labor), the division has refused to enforce Section 8 of the National Voter Registration Act, also known as the Motor Voter law. Section 8 requires states to remove ineligible voters from their registration lists.Filing the ACRU lawsuits against Jefferson Davis County and Walthall County were three former Justice Department lawyers: Christopher Coates, Christian Adams (the legal editor of PJ Media), and Henry Ross. As the complaints outline, the U.S. Census says Jefferson Davis County has only 9,536 residents of voting age. Yet the county has 10,078 registered voters, giving it a registration rate of 105 percent. (The national average hovers at about 70 percent.)Walthall County rolls are even more astonishing. The Census counts only 11,368 voting-age residents there, but the county boasts 14,108 registered voters — a 124 percent registration rate.