He is the founding leader and self-styled "Commander-in-Chief" of the Namibian Economic Freedom Fighters since its foundation on 24 June 2014.
He left and joined the Congress of Democrats (CoD), which was the official opposition at the time, and in 2004 became a member of its executive committee.
[3] In 2014 the Namibian Economic Freedom Fighters (NEFF) was founded with Mukwiilongo as leader of the party.
The NEFF is known for its left-wing economic views, including calls to nationalise Namibia's vast natural resources, opposition toward Chinese and Indian investors whom the NEFF claim are destroying the Namibian local business, and anti-LGBT social views.
[4] Mukwiilongo was accused a hypocrite following revelations that his company sold a piece of land in Oshikuku to a foreign business entity in November 2023.