They’ve been fighting in Wisconsin and Pennsylvania over the cut-off date for counting mailed ballots, and in North Carolina over witness requirements. Ohio is grappling with drop boxes for ballots as Texas faces a court challenge over extra days of early voting.Measuring the anxiety over the November election is as simple as tallying the hundreds of voting-related lawsuits filed across the country in recent months. The cases concern the fundamentals of the American balloting process, including…