In this March 9, 2016 file photo, Attorney General Loretta Lynch testifies on Capitol Hill in Washington, before the Senate Judiciary Committee. Lynch is urging the nation's governors to make it easier for convicted felons to obtain state-issued identification after they get out of prison, part of a broader plan being announced Monday to help smooth the path for state and federal inmates who are preparing to re-enter society. (AP Photo/Andrew Harnik) 

In this Nov. 25, 2014, file photo, demonstrators block Public Square in Cleveland, during a protest over the police shooting of Tamir Rice. The city of Cleveland has reached a settlement Monday, April 25, 2016, in a lawsuit over the death of Rice, a black boy shot by a white police officer while playing with a pellet gun. (AP Photo/Tony Dejak, File) 

In this Monday, March 21, 2016, photo, Ronald Tillman stands outside of his apartment in Lincoln, Neb. Tillman, a Navy veteran, spent three years in prison for selling morphine pills to a police informant, and is now ineligible for food stamps despite his bipolar disease and a debilitating back injury that have made it hard for him to work. Nebraska is among a dwindling number of states that still enforce a lifetime ban on drug offenders receiving food stamps. (AP Photo/Grant Schulte) 

In this Tuesday, March 8, 2016 photo, David Cantara watches as his newest litter of would-be service dogs eat from their food dish at Patriot Rovers in High Point, N.C. Cantara has been training dogs to help fellow veterans for about 30 years. (AP Photo/Allen G. Breed) 

This image provided by the Library of Congress shows Harriet Tubman, between 1860 and 1875. A Treasury official said Wednesday, April 20, 2016, that Secretary Jacob Lew has decided to put Tubman on the $20 bill, making her the first woman on U.S. paper currency in 100 years. (H.B. Lindsley/Library of Congress via AP) 

Melissa Butler, Akai Gurley's girlfriend, reads a statement in court during the sentencing of former police officer Peter Liang in New York, Tuesday, April 19, 2016. Liang, convicted in the accidental shooting death of an unarmed man, Akai Gurley, in a darkened stairwell was spared prison time Tuesday, and a judge reduced his manslaughter conviction to a lesser charge. (Jesse Ward/The Daily News via AP, Pool)