Muhammad Nur was one of the founding members of the
National Justice Party (KeADILan, precursor to PKR), sharing a longstanding association with its founder,
Anwar Ibrahim, during their activist years in the
Malaysian Islamic Youth Movement (ABIM). Anwar was a founding member who served as president of ABIM from 1974 to 1982, whereas Muhammad Nur would eventually succeed him as president from 1991 to 1997. This foundation cemented a political alliance that guided Muhammad Nur’s role within the broader
Reformasi movement. In
2001, Muhammad Nur contested the deputy presidency of KeADILan as a candidate from the party’s ABIM-aligned Islamic intellectual faction, representing one of the party’s key ideological groups. He received 477 votes, narrowly losing to Abdul Rahman Othman, who won with 521 votes. Being a native of
Perak, both of his two candidacies for the
Dewan Rakyat were in his home state. He contested the
Larut parliamentary seat in the
1999 general election, losing by 4,009 votes against
UMNO candidate
Raja Ahmad Zainuddin Raja Omar. In
2013, he stood as the PKR candidate for the neighbouring
Bagan Serai, narrowly losing against UMNO’s
Noor Azmi Ghazali, who won with a 1,140-vote majority. He was appointed a senator in 2015, representing
Selangor in the
Dewan Negara during the
13th Malaysian Parliament, serving one term alongside
DAP's
Chandra Mohan Thambirajah from 17 December 2015 to 16 December 2018. ==Later career==