Democrats believe in getting the non-voters registered and involved.
Republicans believe that this massive push to register voters is a push towards voter fraud and want laws to require some form of Official ID'S be used to guarantee people only vote once.
The dis-enfranchisment refers to this argument between the parties. Democrats just want people to vote, Republicans just want people to vote properly.
Simply one more way that American politics is screwed up.
*MySmiley*