His party chosen his father, retired Associate Justice and former Rep. Dante Tiñga to run in his place.

He was challenged by Ferdinand "Ferdie" Santos, Cayetano's running mate, Jeffrey Lontoc, and Cirila Lumontod.

Her party chosen former Muntinlupa Councilor Rene Carl "Ren-Ren" Cayetano to run in her place.

He was challenged by Mayor Sigfrido "Freddie" Tiñga, Second District Councilor Arvin Ian Alit, and independent candidates James Layug, and Robinson "Robin" Lumontod Jr. Rep. Ma.

Tinga later filed an election protest and accused Cayetano of massive vote-buying and pre-programmed CF cards altered results in Taguig.