Scott Morrison took office a day before sending condolences to John McCain .
French President Emmanuel Macron , Taiwanese President Tsai Ing-wen , Ukrainian President Petro Poroshenko and Prime Minister Volodymyr Groysman , Australian Prime Minister Scott Morrison and former Prime Minister Malcolm Turnbull , British Prime Minister Theresa May and former Prime Minister David Cameron , Canadian Prime Minister Justin Trudeau and former Prime Minister Stephen Harper , German Chancellor Angela Merkel and foreign minister Heiko Maas , Israeli Prime Minister Benjamin Netanyahu , Afghanistan chief executive Abdullah Abdullah , Pakistani foreign minister Shah Mehmood Qureshi , and former Vietnamese ambassador to Washington Nguyễn Quốc Cường also sent condolences .
John McCain