Millions of American adults are not allowed to vote — and they could change history

An estimated 6.1 million American adults were not allowed to vote in the 2016 election because they had a felony conviction on their record. Most had already served their sentences and returned to their communities. The majority of US states take away felons' voting rights, occasionally for life. This disenfranchisement affects an estimated one in 40 adult Americans, or 2.5% of the total US voting-age population, according to The Sentencing Project, a group that advocates...