Berkeley Lloyd Bunker (August 12, 1906 – January 21, 1999) was an American businessman and politician who served as both an appointed United States senator and one-term member of the U.S. House of Representatives from Nevada in the mid-20th century.

[1] The young new senator, whom Carville likely chose as a compromise candidate because (as an observer later said) "Nobody was mad at Berkeley Bunker", later claimed to be the "most surprised man in the state" as he had not asked for the job.

In what he later called "the biggest mistake of my political career", instead of running for reelection to the House, Bunker challenged Carville in the Democratic primary for the 1946 election.

Bunker won, but according to fellow Democrats, he had committed what the Las Vegas Review-Journal later described as the "heinous crime of political ingratitude, becoming a party pariah."

Bunker ran for lieutenant governor in 1962 but lost to Republican Paul Laxalt, in part because former Carville supporters still resented his defeat of their candidate in 1946.