On Monday, Ivana Trump in an ABC interview ahead of the release of her memoir, "Raising Trump", said she was "basically first Trump wife, I'm first lady".
Ivana referenced the anecdote when describing a key feature of Donald and the rest of the Trump family that she learned when she and the future president first began dating.
'I [don't] really want to call him there, because Melania is there, ' she said. The couple were married in 1977 and divorced in the 1990s.
Melania and US President Donald Trump were honouring the 2017 National Hockey League Stanley Cup Champions, The Pittsburgh Penguins, in the East Room of the White House on October 10, when the 47-year-old wore the dress.
She suggested on Good Morning America that the First Lady probably wouldn't like living in Washington, and that although she has a private line to the President, she doesn't use it in fear of making Melania jealous.
Her comments haven't gone down well with Melania, whose press secretary issued a scathing statement in response.
The office of the actual First Lady of the United States didn't take too kindly to that assertion.
Ivana Trump, 69, is the mother of Donald Trump's first three children: Donald Jr., Ivanka and Eric. There is no clear foundation for this statement from a former one.
Melania Trump's spokeswoman, Stephanie Grisham, says there was "clearly no substance to this statement from an ex", and she calls it "attention-seeking and self-serving noise".