I'm not going to do your work for you but if you do a search on "voter fraud" along with these words, you will turn up cases with actual fraud: Ron Paul, St. Lucie, Al Franken, Patrick Moran, Cook County, Colin Small, Dan McGrath, Roxanne Rubin.
Finally, visit this link: http://www.truethevote.org/news/how-widespread-is-voter-fraud-2012-facts-figures
Now you can go back to your herd of sheep. Baaaaa! Baaaaaa!