Soup McGee shared a link.
"As the Sentencing Project noted in its 2010 analysis, there were nearly 5.85 million Americans who were restricted from voting—600,000 more than its research in 2004. That included 4 million already out in the community and completely barred from political participation. But a 2012 voter-turnout study by the George Mason University Elections Project found more than 6.8 million Americans combined who were either in prison, on probation, on parole or completely ineligible to vote because of felony convictions."