In Ohio, in 04, people were disqualified because their voter apps were on the wrong weight of paper, absentee votes were not counted, voting locations were changed frequently (including on the day of the election) for democratic parts of town, poor locations with thousands of voters got 2 voting machines while small towns with hundreds of people had 4-5 (there were 5 hours lines in the rain for some poor neighborhoods), there were numerous actual cases of votes blatantly switching from kerry to bush before being submitted (http://www.youtube.com/watch?v=1aBaX9GPSaQ is actually based on true stories), and more. All under the leadership of Ken Blackwell, Secretary of State and leader of Ohio's campaign to reelect Bush.
God Ohio voting sucks.
XI Wiki


