If you pay attention when democrats talk about who votes and how, the words "voter suppression" are always bandied about.
Loose translation, everyone should vote if they are voting democrat, dead or alive, citizen or illegal.
A major contributor to any possible voter fraud is the electronic voting machine. No paper ballot, no way to go back and verify accurancy after the election. He who controls the voting system controls the outcome of the election.
Voter ID is another big issue, makes you wonder why the administration was so upset about voter ID in some states, but not in others.