38 America’s amendments have included many of the groups initially excluded at the Founding. In the wake of the Civil War, ‘We the people’ abolished slavery in the Thirteenth Amendment, promised equal citizenship to all Americans in the Fourteenth Amendment, and extended the vote to black men in the Fifteenth Amendment. A half-century later, they guaranteed the right of women suffrage in the Nineteenth Amendment, and during a still later civil-rights movement, they freed the federal election process from poll taxes and secured the vote for young adults in the Twentyfourth and Twenty-sixth Amendments, respectively. No amendment has ever back on prior voting rights or rights of equal inclusion. Previously excluded groups have played leading roles in amendments the amendment have process promised these itself, groups even as additional political rights. Black voters, already enfranchised in many Amendment States, forward; propelled women the voters Federal helped Fifteenth birth the Nineteenth; and the poor and the young spearheaded movements to secure their own constitutionally