President Barack Obama pauses as he speaks at the El Reno Federal Correctional Institution in El Reno, Okla., July 16, 2015. Obama was the first sitting president to visit a federal prison.
President Barack Obama pauses as he speaks at the El Reno Federal Correctional Institution in El Reno, Okla., July 16, 2015. Obama was the first sitting president to visit a federal prison. Evan Vucci AP
President Barack Obama pauses as he speaks at the El Reno Federal Correctional Institution in El Reno, Okla., July 16, 2015. Obama was the first sitting president to visit a federal prison. Evan Vucci AP