See (Literally) Why Al Franken is Gaining Votes
The reason Minnesota's Democratic senatorial candidate, Al Franken, is poised to catch up with and possibly beat the Republican incumbent, Norm Coleman, is vividly demonstrated on the Minnesota Public Radio website.
This report shows varieties of sloppy writing by voters who used pens to mark their paper ballots -- marks that could not be read by optical-scan computer counters. You literally can see examples of ballots that were not counted in the tally on Election Night and decide how you would count them: for Franken or Coleman.
Apparently, Franken is benefiting from what appears to be sloppier writing by Democrats than Republicans. As of late Wednesday, he was trailing by 168 votes and gaining on Coleman.