Aspiring Parañaque City 2nd district congressman Brian Raymund Yamsuan has a huge lead in voter preference over his rival, based on the results of the latest Social Weather Stations (SWS) survey.

Conducted from April 10 to 14, 2025, the SWS survey showed Yamsuan with 54 percent of the votes in the city's 2nd district.

His rival, incumbent congressman Gus Tambunting, was the choice of only 31 percent of voters. 

Yamsuan, a former Department of the Interior and Local Government (DILG) assistant secretary, is the Bicol Saro Party-list representative in the current 19th Congress. 

The 23-percentage point difference is equivalent to an estimated 50,000 votes, according to SWS. The mid-term elections will take place on Monday, May 12.

The April 2025 survey also showed Yamsuan dominating over Tambunting across all of Parañaque’s district two barangays. 

Yamsuan is the choice of 52 percent of voters in Barangay BF Homes; 47 percent of voters in San Antonio, and 68 percent of voters in Marcelo Green. 

He is also leading in Sun Valley with a 58 percent preferring him over Tambunting, and in Don Bosco with a 45 percent voter preference share. 

Yamsuan also got 69 percent voter support in Merville, 53 percent in Moonwalk, and 57 percent in San Martin de Porres. 

An independent candidate, Yamsuan steadily increased his voters’ preference share over a seven-month period. From September 2024 before the filing of his certificates of candidacy (COC) for the midterm elections, when he was the choice of 38 percent of the voters, preference for him increased to 51 percent in November 2024 and then to 54 percent in last month.

On the other hand, Tambunting’s voter preference share progressively dwindled from 44 percent in September 2024, to 38 percent in November 2024, and 31 percent in April 2025.

Some 600 Filipino adults served as respondents in the SWS survey. The margin of error has been pegged at plus or minus 4 percent.