Wisconsin Gov. Scott Walker spoke about taking on public employee unions, and the protests that followed, at a recent candidates forum in Iowa. He said what people may not know is that protesters — as many as 1,000 of them — showed up outside his home while his family was there. He says he also received death threats. Scott Olson/Getty Images hide caption

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Michael Bell Sr. (center) and his family stand near one of the billboards they bought in a campaign to bring awareness to internal police investigations. Bell's son was shot and killed by police in Kenosha, Wis. Courtesy of the Bell family hide caption

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Ballots are stacked and ready as voters wait in line during the 2012 primaries in Milwaukee. An appeals court ruled Monday that a Wisconsin voter ID law, on hold since 2011, could go into effect, but the Supreme Court stepped in on Thursday night to halt the law again as it decides whether to take the case. Jeffrey Phelps/The Associated Press hide caption

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Kody Partridge (center right) and her partner, Lauri Wood, kiss at a same-sex marriage celebration Monday in Salt Lake City. The status of gay marriage remains uncertain in Kansas and Wyoming, where officials say no court has ruled on their ban specifically. George Frey/Getty Images hide caption

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Wisconsin Republican Gov. Scott Walker speaks in Milwaukee in May. Newly released documents show prosecutors are alleging Walker was at the center of a nationwide "criminal scheme" to illegally coordinate with outside conservative groups. Jeffrey Phelps/AP hide caption

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Cheese, glorious cheese! The European Union wants U.S. food makers to stop using names with historical ties to Europe. But what else would you call, say, Parmesan and Brie? Dinner Series/Flickr hide caption

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In this June 2008 photo, the bridge spanning the Mississippi River between Winona, Minn., and the Wisconsin side of the river is closed to traffic. Jim Mone/AP hide caption

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Wisconsin Gov. Scott Walker speaks at the Conservative Political Action Conference in March. Pete Marovich/Getty Images hide caption

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Dale Hippensteel, manages the Sheboygan County health department. Jeffrey Phelps/For NPR hide caption

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Guests stand after a Rand Paul speech at the Conservative Political Action Conference (CPAC) in Rosemont, Ill. Conservatives celebrated Tuesday's victory in Wisconsin's recall election. Scott Olson/Getty Images hide caption

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Wisconsin Republican Gov. Scott Walker (right) celebrates his win over Democratic challenger Tom Barrett at Tuesday night's victory party in Waukesha, Wis. Morry Gash/AP hide caption

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Supporters listen to Republican presidential candidate Rick Santorum at The Ravine in Bellevue, Wis., on March 24. Some voters in the state are complaining about a barrage of negative ads in advance of Tuesday's primary. Darren Hauck /Reuters /Landov hide caption

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