PETALING JAYA: Barisan Nasional chairman Datuk Seri Dr Ahmad Zahid Hamidi has come under heavy fire for going against the collective decision made by the coalition not to support any political pacts for now, with MCA reiterating its call for him to resign.MCA secretary-general Datuk Chong Sin Woon said during the meeting on Tuesday night, MCA and other Barisan component parties had questioned Ahmad Zahid on why he had gone against the coalition’s resolution.