Police officers talk with community activist Cynthia Davis in the Staten Island borough of New York, Tuesday, May 24, 2016. The recent highly publicized deaths of black men in encounters with police in Minnesota, Louisiana and across the country, and now the sniper killing of five Dallas officers, have focused new attention on the chasm between police and minorities, one of so many divides in this contentious election year. Years of tension have left people wary in both the policing community and in minority neighborhoods, with many yearning for one another’s respect. (AP Photo/Seth Wenig) 

Baton Rouge Police and Louisiana State Police arrest a man as they work to clear Airline Highway after protestors blocked traffic at Goodwood Boulevard, at the Baton Rouge Police headquarters, Friday, July 8, 2016, in Baton Rouge, La. (Hilary Scheinuk/The Advocate via AP 

In this Saturday, July 9, 2016 photo, Gillian Breidenbach looks out her window toward the area where Dallas police set up a command center to respond to the sniper attack that left five officers dead on Thursday night, in Dallas. The chaos and panic that ensued when Micah Johnson sprayed bullets at a protest against police brutality, killing five officers, resonated across a city increasingly defined by its diversity. Now Dallas has become a focal point in the nation’s ongoing debate and struggles around race and criminal justice. (AP Photo/Gerald Herbert) 

Democratic presidential candidate Hillary Clinton listens as Sen.Bernie Sanders, I-Vt. speaks during a rally in Portsmouth, N.H., Tuesday, July 12, 2016, where Sanders endorsed Clinton. (AP Photo/Andrew Harnik) 

Democratic presidential candidate Hillary Clinton addresses a gathering on the Boardwalk Wednesday, July 6, 2016, in Atlantic City, N.J. (AP Photo/Mel Evans) 

Dallas police chief David Brown, front, and Dallas mayor Mike Rawlings, rear, talk with the media during a news conference, Friday, July 8, 2016, in Dallas. Snipers opened fire on police officers in the heart of Dallas Thursday night, during protests over two recent fatal police shootings of black men. (AP Photo/Eric Gay) 

Hundreds gather at the JJ Hill Montesorri School Thursday, July 7, 2016, in St. Paul, Minn. for a vigil following the shooting death by police of Philando Castile Wednesday night in Falcon Heights, Minn. after a traffic stop by St. Anthony police. (AP Photo/Jim Mone)