A leadership stand-off in the Philippine Senate ended Wednesday with the removal of an ally of former president Rodrigo Duterte as leader of the chamber, which will soon start the impeachment trial of his daughter, incumbent Vice-President Sara Duterte-Carpio. With 13 of 24 senators backing him, Sherwin Gatchalian, an ally of President Ferdinand Marcos Jnr, was elected Senate president. His rival, Alan Peter Cayetano, a key supporter of Duterte, admitted defeat.