MANILA – Senator Ferdinand ''Bongbong'' Marcos Jr. maintained his lead in the vice-presidential race, the latest Pulse Asia survey showed.

The Pulse Asia ''Pulso ng Bayan'' survey, conducted from April 16 to 20, shows Marcos getting 29 percent, followed by Liberal Party bet Leni Robredo with 24 percent.

Erstwhile frontrunner Senator Francis Escudero got 18 percent, while Senators Alan Peter Cayetano, Gringo Honasan, and Antonio Trillanes IV got 16 percent, 4 percent, and 3 percent, respectively.

Marcos dominated the National Capital Region (39 percent) and Balance Luzon (37 percent), while Robredo got the biggest support in Visayas (33 percent).

Cayetano, the running mate of current presidential race frontrunner Davao City Mayor Rodrigo Duterte, dominated Mindanao with 34 percent.

In terms of socioeconomic classes, Marcos and Robredo both got strong support from classes ABC (36 percent and 32 percent, respectively) and class D (30 percent and 25 percent, respectively).

Cayetano got the highest support from class E with 23 percent, just a few points ahead of Marcos and Robredo, who got 22 percent and 21 percent, respectively.

Pulse Asia said Escudero was the top alternative among voters, with 27 percent of respondents saying they would vote for the him if their first choice for vice-president does not continue his/her candidacy.

He is followed by Robredo with 15 percent, Marcos and Cayetano with 14 percent each, Trillanes with 7 percent, and Honasan with 4 percent.

Based on a multistage probability sample of 1,800 registered voters 18 years old and above, with biometrics, the survey has a ± 2.3% error margin at the 95% confidence level.