PDP. First Senate President of the Fourth Republic. Impeached 18 November 1999 over name discrepancies.
Bicameral assembly under the 1999 Constitution: 109 Senators (3 per state plus 1 for the FCT) and 360 Representatives. Now in its 10th sitting.
SenateJun — Nov 1999· 4th — 1st
Evan(s) Enwerem — Senate President
Fourth Republic National Assembly (1999 — present)
Others in this era
Chuba Okadigbo — Senate President
Senate · Nov 1999 — Aug 2000
Anyim Pius Anyim — Senate President
Senate · 2000 — 2003
Adolphus Wabara — Senate President
Senate · 2003 — 2005
Ken Nnamani — Senate President
Senate · 2005 — 2007
David Mark — Senate President
Senate · 2007 — 2015
Bukola Saraki — Senate President
Senate · 2015 — 2019
Ahmad Lawan — Senate President
Senate · 2019 — 2023
Godswill Akpabio — Senate President
Senate · 2023 — present
Salisu Buhari — Speaker
House · Jun — Jul 1999
Ghali Umar Na'Abba — Speaker
House · 1999 — 2003
Aminu Bello Masari — Speaker
House · 2003 — 2007
Patricia Olubunmi Etteh — Speaker
House · Jun — Oct 2007
Dimeji Bankole — Speaker
House · 2007 — 2011
Aminu Waziri Tambuwal — Speaker
House · 2011 — 2015
Yakubu Dogara — Speaker
House · 2015 — 2019
Femi Gbajabiamila — Speaker
House · 2019 — 2023
Tajudeen Abbas — Speaker
House · 2023 — present
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.