The road to the White House is going to be a bumpy one in 2016 with candidates from both parties needing to grapple with solutions to the country's biggest problems. Brendan Smialowski/AFP/Getty Images hide caption

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New research suggests that increasing numbers of people want to live among those who share their politics. In this April 2010 photo, an aerial view of a Tucson, Ariz., housing development. Charles Rex Arbogast/AP hide caption

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