Senator Haruna Manu has served Taraba Central since June 2023, transitioning from eight years as Deputy Governor of Taraba State under Governor Darius Ishaku. His identifiable legislative output in the 10th Senate includes two bills with public-interest rationale: the Federal Medical Centres Act (Amendment) Bill to establish a Federal Medical Centre in Gembu, which passed the Senate in 2025 and awaits House concurrence, and the Federal University of Livestock, Agricultural Technology and Entrepreneurship Development, Mutum-Biyu (Establishment) Bill 2024 (SB 520), status of which has not been confirmed as passed. He served as Vice Chairman of the Senate Committee on Local and Foreign Debts and presented the committee's report to the full Senate in November 2025 on a N1.15 trillion domestic borrowing plan. Documented constituency-service activity is limited in the public record, with scrutiny emerging ahead of the 2026 APC primary over the visibility of projects in Taraba Central's five LGAs. In February 2026 he defected from the PDP, on whose platform he was elected, to the All Progressives Congress, citing his assessment that his legislative agenda would be better advanced under the ruling party. He won the APC senatorial primary in May 2026. No EFCC, ICPC, or court proceedings against Manu personally have been reported. His former principal, ex-Governor Ishaku, was arraigned by the EFCC in 2024 on a 15-count charge alleging N27 billion fraud; Manu stood as administrative surety for Ishaku's 2023 EFCC administrative bail, a connection that is noted but does not constitute an allegation against Manu.