Which incumbent senators will be serving until the next admin?

Fifteen incumbent senators, including candidates for top posts in the May 2016 elections, will be serving at least until 2019.

Those elected for six-year terms in 2013 include: presidential candidate Sen. Grace Poe and vice presidential candidates Senators Alan Peter Cayetano, running mate of incoming president Rodrigo Duterte; Chiz Escudero, Gregorio Honasan II, and Antonio Trillanes IV.

All in all, five incumbent senators ran for vice president in the May polls. Aside from Cayetano, Escudero, Honasan and Trillanes, Sen. Bongbong Marcos also sought the second-highest post in the land.

Marcos lost by a slim margin of a little over 260,000 votes to Vice President-elect Leni Robredo, the only female candidate and only congresswoman to run for that post.

Marcos, son of the late President Ferdinand Marcos Sr., is one of the senators who will be ending their terms this month.

The younger Marcos, the outgoing chairman of the Senate committees on local government and public works, was the running mate of another senator who is also ending her term this month — Sen. Miriam Defensor Santiago.

This is the third time that Santiago ran for president. The other two were in 1992 and 1998.

Meanwhile, aside from the 12 incumbent senators whose terms are until 2019, three senators who were elected in 2010 got reelected and will serve until 2022: Senators Franklin Drilon, Tito Sotto, and Ralph Recto. —  Veronica Pulumbarit, Virgil Lopez, Jannielyn Ann Bigtas/RSJ, GMA News