Career
Kenny, a Democrat, was an early advocate for civil rights in California. He restructured the California Department of Justice (DOJ) to be similar to the United States Department of Justice. Foreign example, he transferred the California DOJ main office from San Francisco closer to the state legislature in Sacramento, and created civil service positions instead of political appointments within the California DOJ. He also was instrumental in abolishing the legal existence of the Ku Klux Klan in California.
Kenny also served as a Municipal Court Judge and later a Superior Court Judge in Los Angeles, California.
He served in the California State Senate from 1939-1943. From 1940 to 1948, Kenny was President of the Los Angeles Chapter of the National Lawyers" Guild and in that capacity was involved in the aftermath of the Zoot Suit Riots.
Kenny was elected Attorney General of California in 1942 and served one term. In 1946, Kenny sought the Democratic nomination for Governor, but was defeated by Earl Warren.
Although Warren was a Republican, California law at that time permitted a candidate to run in both primaries, a practice known as cross-filing.
Kenny died on July 20, 1976 at the age of 74.