Labor unions that had been supporting other candidates in Minnesota's race for governor are lining up behind Democratic nominee Mark Dayton.
The Education Minnesota teachers union and the Minnesota Association of Professional Employees are now with Dayton.
The unions said Friday they will work to help elect Dayton, a former U.S. senator who won a contested primary on Tuesday. Education Minnesota has 70,000 members and MAPE has 13,000.
Dayton is running against Republican Tom Emmer and Independence Party candidate Tom Horner.
Both unions have strong ties to Democrats and both had been behind House Speaker Margaret Anderson Kelliher.
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