Briones was elected as representative of Cebu's old first congressional district for the
5th Philippine Legislature on June 3, 1919, and served for three more terms until the
8th Philippine Legislature in 1931. The old first district was composed of the towns
Bogo,
Borbon,
Carmen,
Catmon,
Danao,
Pilar,
Poro,
San Francisco,
Sogod Tabogon, and
Tudela,. In 1931, he ran and won as senator together with
Sergio S. Osmeña Sr. During this time, the country was split into 12 districts with each district represented by 2 senators. He and Osmeña represented Cebu, which was the 10th senatorial district. During the
Philippine Presidential Election on November 8, 1949, Briones ran for vice-president under the
Nacionalista Party. == Supreme Court ==