Aminu Waziri Tambuwal — Speaker

Fourth Republic National Assembly (1999 — present)

PDP → APC. Defected on the floor in October 2014. Later Governor of Sokoto (2015–23).

Bicameral assembly under the 1999 Constitution: 109 Senators (3 per state plus 1 for the FCT) and 360 Representatives. Now in its 10th sitting.

Others in this era

Methodology

Tier 1 · primary

Courts. Gazettes. National archives.

Tier 2 · corroborating

OCCRP. HRW. BudgIT. TheCable.

Tier 4 · tertiary, flagged

Wikipedia only where primary is pending. Always labelled.