Background
Hanna was born in Kemmerer, Wyoming and graduated from Pasadena Junior College, Pasadena, California.
Hanna was born in Kemmerer, Wyoming and graduated from Pasadena Junior College, Pasadena, California.
He received his Bachelor and Bachelor of Laws from the University of California, Los Angeles and then became a lawyer in private practice, after serving in the United States Naval Air Corps from 1942 to 1945.
He resigned his seat on December 31, 1974. In the 1970s, he received payments of about $200,000 from Korean businessman Tongsun Park in what became known as the influence buying scandal. After the payments were revealed, he pled guilty to conspiring to commit bribery and was sentenced to 6–30 months in federal prison, of which he served one year.
After his death on June 9, 2001, in Tryon, North Carolina, he was cremated and his ashes were scattered in the Atlantic Ocean, off the coast of North Carolina.
He served as member of the California state assembly from 1956 to 1962 and was elected as a Democrat to the Eighty-eighth United States Congress in 1963 and to the five succeeding congresses (January 3, 1963 - December 31, 1974) to represent California"s 34th congressional district, which then covered parts of Los Angeles and Orange counties.