The 1998 election of members to the Senate of the Philippines was the 26th election to the Senate of the Philippines. It was held on Monday, May 11, 1998 to elect 12 of the 24 seats in the Senate. The two main competing coalitions in the senatorial election were Lakas—National Union of Christian Democrats—United Muslim Democrats of the Philippines and the Laban ng Makabayang Masang Pilipino umbrella coalition composed of Laban ng Demokratikong Pilipino, Pwersa ng Masang Pilipino, Nationalist People's Coalition, and Partido Demokratiko Pilipino—Lakas ng Bayan. The two coalitions split the 12 contested seats 7–5 in favor of LAMMP. Candidates The two major presidential candidates, House Speaker Jose C. de Venecia Jr. of Lakas—NUCD—UMDP and Vice President Joseph E. Estrada of LAMMP presented full 12-person senatorial slates. Former National Defense Secretary Renato de Villa's Partido ng Demokratikong Reporma—Lapiang Manggagawa, Santiago Dumlao's Kilusan para sa Pambansang Pagpapanibago, and Manila Mayor Alfredo Lim's Liberal Party also presented senatorial slates. Oliver Lozano was the sole independent not included in senatorial slates who was allowed to run. Administration coalition Lakas-NUCD-UMDP ticket: Lisandro Abadia Rolando Andaya Robert Barbers Rene Cayetano Roberto de Ocampo Ricardo Gloria Teofisto Guingona Jr. Loren Legarda Roberto Pagdanganan Hernando Perez Nina Rasul Ramon Revilla Sr. Primary opposition coalition Laban ng Makabayang Masang Pilipino ticket Tessie Aquino-Oreta Ramon Bagatsing Jr. Rodolfo Biazon Robert Jaworski Edcel Lagman Blas Ople John Henry Osmeña Aquilino Pimentel Jr. Miguel Luis Romero Tito Sotto Ruben D. Torres Freddie Webb Other opposition coalitions Partido ng Demokratikong Reporma-Lapiang Manggagawa ticket Adolfo Geromino Abraham Iribani Rey Langit Roberto Sebastian Roy Señeres Hadja Putri Tamano Jose Villegas Haydee Yorac Liberal Party ticket Raul Daza Charito Plaza Kilusan para sa Pambansang Pagbabago ticket Ludovico Badoy Eduardo Bondoc David Castro Renato Garcia Fred Henry Marallag Independent Oliver Lozano Retiring and term limited incumbents Heherson Alvarez (LDP), term limited, ran for representative from Isabela's 4th district and won; ran for senator in 2004 and lost Edgardo Angara (LDP), term limited, ran for Vice President of the Philippines and lost; ran for senator in 2001 and won Neptali Gonzales (LDP), term limited, retired from politics Ernesto Herrera (LDP), term limited, ran for representative from Bohol's 1st district and won; ran for senator in 2001 and in 2004 and lost both times Ernesto Maceda (NPC), term limited, ran for mayor of Manila and lost; ran for senator in 2004 and lost Orlando S. Mercado (LDP),