# 1965 Philippine Senate election

A senatorial election was held on November 9, 1965 in the Philippines. The Nacionalista Party wrestled back control of the Senate; originally a Liberal, Senate President Ferdinand Marcos defected to the Nacionalistas, became their presidential candidate and won this year's election.
After the election, the Senate emerged with 12 Liberals on one side, and 11 Nacionalistas and 1 Nationalist Citizens' Party caucusing with them on the other.

## Electoral system

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 8 seats are up every 2 years. The eight seats up were last contested in 1959; each voter has eight votes and can vote up to eight names, of which the eight candidates with the most votes winning the election.

## Retiring incumbents

* Fernando Lopez (Nacionalista), ran for vice president and won
* Ferdinand Marcos (Nacionalista), ran for president and won

### Mid-term vacancies

* Mariano Jesús Cuenco (Nacionalista), died on February 25, 1964
* Eulogio Rodriguez (Nacionalista), died on December 9, 1964

### Other incumbents running elsewhere

These ran in the middle of their Senate terms. For those losing in their respective elections, they can still return to the Senate to serve out their term, while the winners will vacate their Senate seats, then it would have been contested in a special election concurrently with the next general election.
* Gerardo Roxas (Liberal), ran for vice president and lost

## Results

The Nacionalista Party won five seats, the Liberal Party won two seats, and the Nationalist Citizens' Party (NCP) won one.
NCP's Lorenzo Tañada, and Nacionalistas Alejandro Almendras and Genaro Magsaysay all defended their seats.
Five winners are neophyte senators. These are Dominador Aytona, Eva Estrada Kalaw, and Wenceslao Lagumbay of the Nacionalistas, and Liberals Sergio Osmeña Jr. and Jovito Salonga.
Estanislao Fernandez of the Liberal Party lost his seat.
| | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 |
| Before election | | | | | | | | | | | ‡ | ‡^ | ‡^ | ‡ | ‡ | ‡ | ‡ | ‡ | | | | | | |
| Election result | Not up | Not up | Not up | Not up | Not up | Not up | Not up | Not up | Not up | Not up | LP | LP | NCP | NP | NP | NP | NP | NP | Not up | Not up | Not up | Not up | Not up | Not up |
| After election | | | | | | | | | | | * | + | √ | + | * | * | √ | √ | | | | | | |
Key:
* ‡ Seats up
* + Gained by a party from another party
* √ Held by the incumbent
* * Held by the same party with a new senator
* ^ Vacancy

### Per candidate

| Candidate | Candidate | Party | Votes | % |
| | Jovito Salonga | Liberal Party | 3,629,834 | 47.70 |
| | Alejandro Almendras | Nacionalista Party | 3,472,689 | 45.63 |
| | Genaro Magsaysay | Nacionalista Party | 3,463,459 | 45.51 |
| | Sergio Osmeña Jr. | Liberal Party | 3,234,966 | 42.51 |
| | Eva Estrada-Kalaw | Nacionalista Party | 3,190,700 | 41.93 |
| | Dominador Aytona | Nacionalista Party | 3,037,666 | 39.92 |
| | Lorenzo Tañada | Nationalist Citizens' Party | 3,014,618 | 39.61 |
| | Wenceslao Lagumbay | Nacionalista Party | 2,972,525 | 39.06 |
| | Cesar Climaco | Liberal Party | 2,968,958 | 39.01 |
| | Estanislao Fernandez | Liberal Party | 2,846,320 | 37.40 |
| | Constancio Castañeda | Nacionalista Party | 2,814,032 | 36.98 |
| | Ramon Bagatsing | Liberal Party | 2,774,621 | 36.46 |
| | Bartolome Cabangbang | Nacionalista Party | 2,668,431 | 35.06 |
| | Alejandro Roces | Liberal Party | 2,663,852 | 35.00 |
| | Ramon Diaz | Liberal Party | 2,620,073 | 34.43 |
| | Lucas Paredes | Liberal Party | 2,419,573 | 31.79 |
| | Vicente Araneta | Party for Philippine Progress | 500,795 | 6.58 |
| | Amelio Mutuc | Independent | 413,074 | 5.43 |
| | Jose Feria | Party for Philippine Progress | 335,119 | 4.40 |
| | Benjamin Gaston | Party for Philippine Progress | 149,057 | 1.96 |
| | Dionisio Ojeda | Party for Philippine Progress | 143,681 | 1.89 |
| | Magdaleno Estrada | New Leaf Party | 8,766 | 0.12 |
| | Epifanio Talania | Partido ng Bansa | 3,007 | 0.04 |
| | Vicente Baldovino | Partido ng Bansa | 1,945 | 0.03 |
| | German Carbonel | Partido ng Bansa | 1,830 | 0.02 |
| | Toribia S. Valino | Partido ng Bansa | 1,750 | 0.02 |
| | Jose Villavisa | Partido ng Bansa | 1,604 | 0.02 |
| | Teodoro Gosuico Sr. | Partido ng Bansa | 1,153 | 0.02 |
| | Genovevo Baynosa | New Leaf Party | 1,101 | 0.01 |
| | Leoncio Wico Pagdanganan | Partido ng Bansa | 113 | 0.00 |
| Total | Total | Total | 49,355,312 | 100.00 |
| Total votes | Total votes | Total votes | 7,610,051 | – |
| Registered voters/turnout | Registered voters/turnout | Registered voters/turnout | 9,962,345 | 76.39 |

### Per party

Seats :
| Party | Party | Votes | % | +/– | Up | Before | Won | After | +/− |
| | Liberal Party | 23,158,197 | 46.92 | −2.83 | 1 | 9 | 2 | 10 | +1 |
| | Nacionalista Party | 21,619,502 | 43.80 | −6.36 | 4 | 10 | 5 | 11 | +1 |
| | Nationalist Citizens' Party | 3,014,618 | 6.11 | New | 1 | 1 | 1 | 1 | 0 |
| | Party for Philippine Progress | 1,128,652 | 2.29 | New | 0 | 2 | 0 | 2 | 0 |
| | Partido ng Bansa | 11,402 | 0.02 | New | 0 | 0 | 0 | 0 | 0 |
| | New Leaf Party | 9,867 | 0.02 | New | 0 | 0 | 0 | 0 | 0 |
| | Independent | 413,074 | 0.84 | +0.76 | 0 | 0 | 0 | 0 | 0 |
| Vacancy | Vacancy | | | | 2 | 2 | 0 | 0 | −2 |
| Total | Total | 49,355,312 | 100.00 | – | 8 | 24 | 8 | 24 | 0 |
| Total votes | Total votes | 7,610,051 | – | | | | | | |
| Registered voters/turnout | Registered voters/turnout | 9,962,345 | 76.39 | | | | | | |
| Source: Dieter Nohlen; Florian Grotz; Christof Hartmann; Graham Hassall; Soliman M. Santos (15 November 2001). Elections in Asia and the Pacific: A Data Handbook: Volume II: South East Asia, East Asia, and the South Pacific. ISBN 9780199249596. & Julio Teehankee. "Electoral Politics in the Philippines" (PDF). quezon.ph. ||||||||||
Vote share
LP
46.92%
NP
43.80%
NCP
6.11%
PPP
2.29%
Others
0.88% :
Senate seats
LP
25.00%
NP
62.50%
NCP
12.50%
PPP
0.00%
Others
0.00% :

## Defeated incumbents

* Estanislao Fernandez (Liberal), appointed as associate justice of the Supreme Court in 1973, ran for member of parliament from Region IV–A in 1978 and won