Lombardo served in the U.S. Army, the U.S. National Guard, and the U.S. Army Reserve. He also earned a bachelor’s degree and master’s degree in crisis management from the University of Nevada at Las Vegas. After two decades as an officer in the Las Vegas Metropolitan Police Department, he was elected Clark County sheriff in 2014. Lombardo has also served on the board of Nevada Child Seekers and as the chairman of MCCA Intelligence Committee.