Millions of Americans will be barred from casting ballots in Tuesday’s crucial midterm elections due to electoral rules at the state level, which effectively exclude many minority voters to the detriment of Democrats. […] Nearly six million Americans are excluded from voting because they are imprisoned, on parole or awaiting sentencing. African Americans, who are overrepresented in the US penal system, are four times more likely to be unable to vote than the rest of the population, according to The Sentencing Project, a non-profit organization. […] There is no national identity card in the United States. Instead, each state defines...