Insinuating that President Marcos has influence over the impeachment against Vice President Sara Duterte is the "lowest kind of argument," Malacañang said.The role of the National Bureau of Investigation (NBI) in the probe over the alleged death threats made by Duterte against the President, First Lady Liza Araneta-Marcos, and former House speaker Martin Romualdez should not be questioned, Palace Press Officer and Communications Undersecretary C…