Of course they vote. The Democrats register them, take buses out to pick them up and even pay some of them for their time. They not on the edge, they are right in the middle of the government welfare Democrat parasite complex. The ones that don't vote have their motor voter absentee ballot requests sent in for them and someone else takes care of it for them. When some precincts have over 140% turnout and go overwhelmingly for Obama you can pretty sure SOMEONE is voting.