Manila, May 11 -- Senator Alan Peter Cayetano was elected Senate President on Monday after a majority of senators voted to declare all leadership positions in the chamber vacant, ending the tenure of Senator Vicente Sotto III.

Thirteen senators voted in favor of the motion to vacate all Senate posts, while 10 voted against it.

Those who voted "Yes" were Cayetano; Senator Pia Cayetano; Senator Rodante Marcoleta; Senator Christopher Lawrence Go; Senator Robinhood Padilla; Senator Loren Legarda; Senator Imee Marcos; Senator Camille Villar; Senator Mark Villar; Senator Ronald "Bato" dela Rosa; Senator Joel Villanueva; Senator Jinggoy Estrada; Senator Francis Escudero.

Those who abstained were Senator JV Ejercito and Senator Juan Miguel Zu...