evidence: A sprawling six-year-long legal fight over the integrity of Georgia’s elections wrapped up in a federal courthouse in Atlanta on Thursday afternoon, teeing up a ruling that could shake voters’ faith in their electoral system and further fuel unfounded claims of fraud on the right. [...] "You are going to disenfranchise — especially in Fulton County — thousands of people, and I don’t think anybody wants that," he testified Wednesday, defending the state’s system as efficient and secure. Fulton County is home to Atlanta, Georgia’s largest city. [...] The state has sought to discredit Halderman's research, arguing that real-world security measures would prevent the kind of hacks he testified about, which he developed after having spent three months with a Fulton County election machine.