Maine and Vermont are the only two states in the country that allow convicted felons to vote while in prison. But in Maine, prisons are one of the only places that the campaigns can't actually penetrate. Prisoners don't have access to the candidates' campaigns and are barred from talking politics with prison staff. As the presidential campaign wraps up, Jeffrey Merrill, the warden of Maine State Prison joins us to talk about how Maine's prisoners participate in the electoral process.

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