Bersatu infighting is heating up as the divide between those supporting either party president Muhyiddin Yassin or his deputy Hamzah Zainudin threatens to become an irreparable gulf.

Hamzah's allies are rallying to defend him amid speculation that groundwork is being laid to have the deputy president axed or suspended from the party after the disciplinary board issued a summons against him over alleged involvement in efforts to topple Muhyiddin.

Meanwhile, a dinner Muhyiddin hosted for...