[1] He was a member of the National Parliament of Papua New Guinea from 2007 to 2012 and had been re-elected in 2022, representing the electorate of North Wahgi Open.
He subsequently gained admission to the University of Papua New Guinea through their adult matriculation program, graduating with a Bachelor of Arts, majoring in social work.
[2] Mul nominated as a candidate for the North Wahgi Open electorate at the 2007 general election, and was not considered a favourite, with incumbent MP and National Party leader Michael Mas Kal and former MP Dr Fabian Pok considered the likely frontrunners.
[6] In January 2012, he joined Don Polye's new Triumph Heritage Empowerment Rural Party, which stated that its focus was to "try to restore Christian values" in politics.
[7] On 4 July 2012, he was arrested for allegedly distributing cash to voters near a polling booth, and for possessing an unlicensed firearm.