1987 Philippine Senate election

← 1984 (parliament) May 11, 1987 1992 →
All 24 seats in the Senate 13 seats needed for a majority
Alliance LABAN GAD Seats won 22 2 Popular vote 243,237,045 98,060,057 Percentage 64.89 26.16
Senate President before election Abolished Last held by: Gil Puyat Nacionalista Elected Senate President Jovito Salonga LABAN

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The 1987 election of members to the Senate of the Philippines was the 23rd election to the Senate of the Philippines. It was held on Monday, May 11, 1987. The Philippine Senate was re-instituted following the approval of a new constitution in 1987 restoring the bicameral Congress of the Philippines; earlier, a constitution was approved in 1973 that created a unicameral Batasang Pambansa (parliament) that replaced the bicameral Congress. The last Senate election prior to this was the 1971 election.

The Lakas ng Bayan Coalition (LABAN) got 64.9% of the vote but won 22 out of 24 seats in the Senate; only two candidates from the opposition Grand Alliance for Democracy won: former Secretary of National Defense Juan Ponce Enrile and San Juan Mayor Joseph Estrada, despite getting 26.6% of the vote.

Along with the 1916, 1941 and the 1992 elections, this is the third senatorial election where all seats were up.

The 1987 constitution reintroduced the bicameral Congress, restoring the Senate.Philippine Senate elections are held via plurality block voting with staggered elections, with the country as an at-large district. The Senate has 24 seats, of which all 24 seats were up for this election. Each voter has 24 votes, can vote up to 24 names, and the 24 candidates with the highest number of votes winning the seats. All winners shall serve until 1992.

After Marcos was ousted in the People Power Revolution in 1986, his political party, the Kilusang Bagong Lipunan, was fragmented. Almost all its members including Assemblymen Arturo Tolentino, Jose Rono, Nicanor Yniquez, Cesar Virata who were coming from the Nacionalista Party among others were orphaned.

On the other hand, the Aquino coalition took all positions in the Ministry/Cabinet. Most notable were Prime Minister Salvador Laurel, Local Government Minister Aquilino Pimentel Jr. and Executive Secretary Joker Arroyo.

The Lakas ng Bayan (LABAN) consists of the PDP–Laban headed by Local Government Minister Pimentel, the Lakas ng Bansa party headed by Assemblyman Ramon Mitra, the UNIDO, the Liberal Party headed by Senator Jovito Salonga, the National Union of Christian Democrats headed by Raul Manglapus, the Bayang Nagkakaisa sa Diwa at Layunin headed by Butz Aquino, Panaghusia and other pro-Cory regional parties

The GAD consists of the faction of the KBL headed by Assemblyman Arturo Tolentino, the Jose Roy faction of the Nacionalista Party headed by Renato Cayetano, the pre-1986 opposition leaders who defected from Aquino headed by Senator Eva Estrada-Kalaw, the Partido Nacionalista ng Pilipinas headed by Former Labor Minister Blas Ople, the Mindanao Alliance, the Muslim Federal Party and the Christian Social Democratic Party.

The UPP-KBL coalition was composed of pro-Marcos forces. This coalition included some GAD candidates as guest candidates, and was considered to be the loyalist politicians of the Marcos government.

The Left also put up a seven-man slate, under the Partido ng Bayan banner. This includes the Bagong Alyansang Makabayan and its allied organizations.

Other political parties who fielded candidates are the Lapiang Manggagawa, Lakas ng Bansa and the Partido Nacionalista ng Pilipinas, along with several independent candidates.

There were major four coalitions for this election, of which two put up complete 24-person slate, while one had guest candidates to complete its slates, and one had a 7-member slate:

• Lakas ng Bayan (People Power), supporters of President Corazon Aquino
• Grand Alliance for Democracy, opposes Aquino
• Union for Peace and Progress–Kilusang Bagong Lipunan (New Society Movement): supporters of former president Ferdinand Marcos
• Partido ng Bayan (Party of the Nation), by the leftist Bagong Alyansang Makabayan

The Lakas ng Bayan (LABAN) coalition won 22 seats, while the Grand Alliance for Democracy (GAD) won two.

Winners who had served in the 1935 constitution Senate were LABAN's Raul Manglapus, Ernesto Maceda, John Henry Osmeña, Jovito Salonga and Mamintal A.J. Tamano.

Winners who had served in the Batasang Pambansa were LABAN's Neptali Gonzales, Orlando S. Mercado, Aquilino Pimentel Jr., Alberto Romulo, and Victor Ziga, and GAD's Juan Ponce Enrile.

Winners who had neither served in the 1935 constitution Senate and in the 1973 constitution Batasang Pambansa were LABAN's Heherson Alvarez, Edgardo Angara, Butz Aquino, Teofisto Guingona Jr., Ernesto Herrera, Sotero Laurel, Joey Lina, Leticia Ramos-Shahani, Nina Rasul, Rene Saguisag and Wigberto Tañada, and GAD's Joseph Estrada.

The first 21 proclaimed winners were all seated on June 30, the day the terms start. The 22nd and 23rd senators were proclaimed a few days after June 30. Finally, the Commission on Elections, due to the tight race between GAD's Juan Ponce Enrile and LABAN's Augusto Sanchez, only declared the 24th winner by August.^[1]

Key:

• ‡ Seats up
• + Gained by a party from another party
• ^ Vacancy

Party		Votes	%	Seats
	Lakas ng Bayan	243,237,045	64.89	22
	Grand Alliance for Democracy	98,060,057	26.16	2
	Union for Peace and Progress–Kilusang Bagong Lipunan	16,346,234	4.36	0
	Alliance for New Politics	8,512,824	2.27	0
	Lapiang Manggagawa	215,006	0.06	0
	Lakas ng Bayan (original)	101,499	0.03	0
	Partido Nacionalista ng Pilipinas	55,519	0.01	0
	Independent	8,299,562	2.21	0
Total		374,827,746	100.00	24
Total votes		22,739,995	–
Registered voters/turnout		26,569,539	85.59

• Commission on Elections
• 8th Congress of the Philippines

• Official website of the Commission on Elections
• Official website of the House of Representatives
• G.R. No. 83767 October 27, 1988