In a brief order, U.S. District Judge Andrew Hanen in Houston on Friday agreed to hear arguments by a Republican state legislator and others that votes already cast at drive-through voting sites in the Houston area should be rejected. The lawsuit was brought on Wednesday by plaintiffs including Steve Hotze, a conservative activist, and state Representative Steve Toth. Harris County, home to about 4.7 million people, is the third most populous county in the United States.