In 2014, Ubah lost at the 2014 Anambra gubernatorial election under the platform of the Labour Party (LP). On February 24, 2019, the Capital Oil boss was declared the winner of the Anambra South Senatorial elections under the platform of the YPP.
In the following general election in February 2023, the Independent National Electoral Commission (INEC) declared the 52-year-old as the winner of the senatorial election he contested, meaning he kept his seat.
In September 2022, while en route to Nnewi, Ubah was attacked by gunmen in Enugwu-Ukwu - his convoy was shot at; and at least 5 persons, including two policemen, were killed. Ubah survived as the vehicle he was riding in was bulletproof.
