Rep. John Conyers, D-Mich., addresses supporters during the Michigan Democratic election night party in Detroit. Conyers has served in Congress since 1964, but problems with ballot petitions have threatened to keep him out of the August primary. Carlos Osorio/AP hide caption

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Michigan Rep. John Conyers, at a congressional hearing last week. The Democrat and longtime congressman faces the prospect of not being on Michigan's August primary ballot after failing to present the required number of valid signatures. Carolyn Kaster/AP hide caption

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Rep. John Dingell, D-Mich., the longest-serving member of Congress, is celebrated by colleagues, including Vice President Biden, on Capitol Hill in June 2013. A former chairman of the Energy and Commerce Committee, Dingell, now 87, announced in February that he will retire after this term. J. Scott Applewhite/AP hide caption

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Michigan Attorney General Bill Schuette speaks to reporters after arguing the case before the U.S. Supreme Court in October. He's with XIV Foundation CEO Jennifer Gratz, who was a plaintiff in a lawsuit against the University of Michigan's affirmative action policy. Susan Walsh/AP hide caption

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Michigan Gov. Rick Snyder is pushing for changes to federal law to allow more skilled immigrants into the country. Snyder, a Republican, has proposed funneling 50,000 skilled immigrants into Detroit over five years as a way to rejuvenate the moribund city. Paul Sancya/AP hide caption

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Henry Ford Hospital treats Detroit residents. About 1 in 3 residents of that city is uninsured, and the hospital CEO hopes Medicaid expansion will increase the number of people with health insurance. Eric Whitney hide caption

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Ripe Gala apples are ready for picking at an orchard in South Haven, Mich. spablab/Flickr.com hide caption

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Whenever a steer or cow leaves a farm in Michigan or goes to a slaughterhouse, it passes by a tag reader, and its ID number goes to a central computer that keeps track of every animal's location. Dan Charles/NPR hide caption

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Republican presidential candidate Mitt Romney makes a pie shell with store owner Linda Hundt during a campaign stop Tuesday in DeWitt, Mich. Joe Raedle/Getty Images hide caption

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