http://my.barackobama.com/page/content/wivoteguide Fact: Absentee ballots are processed on Election Day by the same election officials who process ballots cast in person.
The municipal clerk, on Election Day, has couriers deliver the absentee ballots to the appropriate polling site. At some point on Election Day, officials follow a specific procedure to count the absentee ballots. In Milwaukee, absentee ballot will be processed in a central location for the entire city.
If the ballot is completed properly, the enveloped is opened, the voter is checked off the registration list as having voted absentee and the ballot is run through the machine – the same as the ballot cast by a voter who is present in the polling place. Wis. Stat. 6.88(3)(a).