By Winn Khuong and Barbara Smith Warner The 2020 election produced record-breaking turnout of young voters in New Jersey, making it the top state for participation among people in that age group. What was our secret? Vote by Mail. And clearly, there is momentum. As of Wednesday, there were more than 693,000 Vote by Mail primary voters in our state, and 248,000 mail ballots had already been returned with the June 4 primary still six days away. But the recent lawsuit over the county line system and its unfair ballot design reminds us of the ongoing challenges in our electoral process. The county…