Julie Bishop, who was Australia’s first female foreign minister and deputy leader of the Liberal Party, said the first lady made the mistake after President Donald Trump struck up a conversation with her partner David Panton.

…Melania, standing by, assumed David was the foreign minister and she said to me: “Julie, will you be coming to my ladies’ lunch tomorrow?”,’ Bishop said of the encounter at the UN General Assembly Leaders’ week in 2017.

Melania Trump ‘mistook former female Australia foreign minister for partner’ | Daily Mail Online

Damn the Trumps’ staff sucks. Sure, she should have known. She also should have had someone with her to help avoid gaffes like that. If she did have anyone there, they clearly weren’t of much use.