Answer the following question: Information:  - Evelle Jansen Younger (June 19, 1918  May 4, 1989) was California Attorney General from 1971 to 1979. Described as an exponent of steadfast moderation, he was nonetheless instrumental in enlarging the scope and power of the state's environmental protection law. Political friends included Richard M. Nixon, Ronald Reagan and Gerald R. Ford. Running against incumbent Jerry Brown, who was then at the height of his popularity, Younger was the unsuccessful Republican Party nominee for Governor of California in 1978. His wife, Mildred, had a promising political career as a centrist Republican in the 1950s until she lost her voice by injuries suffered in a car crash. The Youngers' only child, Eric E. Younger, became a Superior Court Judge.  - Ronald Wilson Reagan (February 6, 1911  June 5, 2004) was an American politician and actor who was the 40th President of the United States, from 1981 to 1989. Before his presidency, he was the 33rd Governor of California, from 1967 to 1975, after a career as a Hollywood actor and union leader.  - The Governor of California is the chief executive of the California state government, commander-in-chief of the California National Guard and the California State Military Reserve, whose responsibilities also include making annual State of the State addresses to the California State Legislature, submitting the budget, and ensuring that state laws are enforced. The position was created in 1849, the year before California became a state. The current governor is Jerry Brown, a Democrat who was inaugurated January 3, 2011, and who had previously served as governor from 1975 to 1983. In October 2013, Jerry Brown surpassed Earl Warren for the longest cumulative period of time served as governor.  - Edmund Gerald "Jerry" Brown Jr. (born April 7, 1938) is an American politician and lawyer who has served as the 39th Governor of California since 2011. A member of the Democratic Party, Brown previously served as the 34th governor from 1975 to 1983, and is the longest-serving governor in California history. Prior to and following his first governorship, Brown served in numerous state, local and party positions, including three times a candidate for the Democratic nomination for President of the United States.  - The President of the United States (POTUS) is the elected head of state and head of government of the United States. The president directs the executive branch of the federal government and is the commander-in-chief of the United States Armed Forces.  - The 1978 California gubernatorial election occurred on November 7 , 1978 . The Democratic incumbent , Jerry Brown , defeated the Republican nominee , Attorney General Evelle J. Younger , in a landslide .    Given the paragraphs above, decide what entity has the relation 'office contested' with 'governor'.
Answer:
california gubernatorial election