 According to a UPI news story that ran the next day, "About 35,000 persons jammed Chicago's Soldier Field for Dr. King's first giant 'freedom rally' since bringing his civil rights organizing tactics to the city.…" Other guests included Mahalia Jackson, Stevie Wonder, and Peter, Paul and Mary.By late July the Chicago Freedom Movement was staging regular rallies outside of Real Estate offices and marches into all-white neighborhoods on the city's southwest and northwest sides.The hostile and sometimes violent response of local whites, and the determination of civil rights activists to continue to crusade for an open housing law, alarmed City Hall and attracted the attention of the national press.