Democratic presidential candidate Hillary Rodham Clinton waves as she steps onstage before speaking at Trident Technical College during a campaign stop, Wednesday, June 17, 2015, in North Charleston, S.C. David Goldman/AP hide caption

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Demonstrators protested the death of Michael Brown on last summer in Ferguson, Mo., even as police sprayed pepper spray, shot smoke, gas and flash grenades. Joe Raedle/Getty Images hide caption

itoggle caption Joe Raedle/Getty Images