Brandon was elected to the
Wellington Provincial Council in its first election in 1853. He represented the Wellington Country electorate until 1865, and then the Porirua electorate until the abolition of the provincial governments in October 1876. He served on various Executive Councils (comparable to a
cabinet) between 1857 and 1871. He was Provincial Solicitor during the
superintendency of
Isaac Featherston. Brandon won with a solid majority. The next election in
1875 was contested by Gillon, Brandon, and J. H. Wallace. Brandon was again successful and received 208 votes versus 141 for Gillon, with Wallace a distant last. Brandon won the and at the end of the parliamentary term in 1881, he retired from politics. He was one of the staunch provincialists (i.e. he was opposed to the abolition of the
provinces). He was called to the
Legislative Council on 5 June 1883 and served until his death. ==Outside parliament==