On what basis can a state deny parolees the right to vote?

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A. An inmate confined to incarceration retains the right to vote by absentee ballot in a primary or election, providing the inmate has met all voting requirements.

http://www.doc.state.vt.us/about/policies/rpd/324.01%20Voting.pdf

http://www.doc.state.vt.us/about/policies/rpd/324%20Voting.pdf
They vote “at home” in the sense that their votes count in the place where they last resided: If prisoners could vote, they would vote at home, not in the prison town | Prison Gerrymandering Project

In Maine and Vermont, inmates can vote (by absentee ballot) on everything, including the election of judges and how much money is spent on the police in their hometowns.

http://www.nytimes.com/2004/11/01/politics/campaign/01prison.html?_r=1&oref=slogin

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From the NYT article cited in my previous post:

Massachusetts used to let felons vote while in prison, but that was before three inmates tried to form a political action committee in 1997 to lobby for cheaper telephone calls and better medical care. Paul Cellucci, then the governor, opposed the prison PAC and proposed a constitutional amendment to stop inmate voting, which passed in 2000.

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[QUOTE=guizot]
I’m still wondering how far a state could get in disenfranchising a person for speeding. Would it survive a Supreme Court test? What is a “crime,” and if once a criminal, always a criminal, and not a full citizen?
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Most of the cases and historical sources talk about disenfranchisement for felonies and infamous crimes. Even in a jurisdiction like Ohio which makes speeding a minor misdemeanor
Section 4511.99 - Ohio Revised Code | Ohio Laws http://www.nhtsa.dot.gov/people/injury/enforce/speedlaws501/toc/ohspeed.pdf
http://www.sconet.state.oh.us/rod/newpdf/8/2006/2006-Ohio-1947.pdf

instead of a civil infraction:

http://www.nhtsa.dot.gov/people/injury/enforce/speedlaws501/toc/mispeed.pdf
it’s unlikely that a court would find it to be infamous. And in other contexts, the Court has distinguished between serious and petty crimes: E.g, http://caselaw.lp.findlaw.com/data/constitution/amendment06/04.html#4, http://caselaw.lp.findlaw.com/scripts/getcase.pl?court=ne&vol=sc/s97-641&invol=1 I’d expect a similar ruling in a case like that.