As scores of young people crowded into a hearing room in the Wilson Building on Wednesday, D.C. Council members saw the future of D.C. politics. “There are multiple future council members and a future mayor in this room,” said D.C. Council member Charles Allen (D-Ward 6). But before they run for office, Allen wants to make them voters. A bill he introduced in April would do just that, lowering the voting age to 16. If passed, the bill would enfranchise up to 10,600 16- and 17-year-olds, according to Census Bureau data. It would also be historic. The nation’s capital would...