Wisconsin has one of the longest traditions of holding presidential preference primaries in the United States. Here is every primary winner the state has produced in the modern political era.
Sources: Wisconsin Blue Book, Wisconsin Government Accountability Board, Wisconsin State Journal archives, New York Times archives, Associated Press
Nick Heynen was the online editor for the Wisconsin State Journal and managed the newspaper's social media accounts until 2018. A Maryland native transplanted to Wisconsin, he joined the paper in 2007 as data reporter.
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Clinton recently described Sanders as a "pie-in-the-sky" politician making promises he can't keep.
The event in Madison featured the senator's wife and mother.
The poll is the first since the GOP field narrowed to three candidates and comes as the race has shifted to Wisconsin.