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CHICAGO, IL - FEBRUARY 19: Illinois governor Bruce Rauner waits for the arrival of President Barack Obama at the Gwendolyn Brooks College Preparatory Academy on February 19, 2015 in Chicago, Illinois. Obama used the event to designate Chicago's historic Pullman district a national monument. Dating back to the 1880s, the Pullman district, on the city's Far South Side, is one of the country's first company towns. The 'town' was founded by George Pullman to house workers at his now-defunct Pullman Palace Car Co., which made luxurious rail cars. (Photo by Scott Olson/Getty Images)

CHICAGO, IL - FEBRUARY 19:  Illinois governor Bruce Rauner waits for the arrival of  President Barack Obama at the Gwendolyn Brooks College Preparatory Academy on February 19, 2015 in Chicago, Illinois. Obama used the event to designate Chicago's historic Pullman district a national monument. Dating back to the 1880s, the Pullman district, on the city's Far South Side, is one of the country's first company towns. The 'town' was founded by George Pullman to house workers at his now-defunct Pullman Palace Car Co.,  which made luxurious rail cars.  (Photo by Scott Olson/Getty Images)