To which branch of government does president Nixon belong

Richard Milhous Nixon (January 9, 1913 – April 22, 1994) was the 37th president of the United States, serving from 1969 until 1974. A member of the Republican Party, Nixon previously served as the 36th vice president from 1953 to 1961, having risen to national prominence as a representative and senator from California.

Pls give Brainiest

Idon’t know who knows i do know who does not know me