PRESIDENT Rodrigo Duterte will order his Cabinet members to secure his approval before attending Senate hearings, as he accused lawmakers of 'stretching' their investigations for political purposes.

'This time, I will require every Cabinet member to clear with me any invitation, and if I think walang silbi (there is no point in attending) except to be harassed, to be berated in front of [the] public, eh, hintuin ko na 'yan at pagbawalan ko na (then I will stop them from going),' Duterte said in his pre-recorded address aired Tuesday.