Ivana Trump revealed that her daughter could take the White House during an interview on Loose Women. She said Ivanka is “in the White House every day. She’s next to her father every day.”
Ms Trump added: “She knows all what is going around.”
Ivanka Trump serves as one of her father’s top advisers in the White House.
Ms Trump praised her daughter for having all the skills to take office as the first ever female president in the US.
She said: “I think she could be one day the first girl, or woman, president. Definitely.
“She’s smart as hell. She’s beautiful. She’s au courant.
“And how much more can you have?”
Ms Trump married President Trump in 1977 before later battling each other in a bitter divorce in 1991.
But she insisted that her and Mr Trump are now on good terms.
Last month, in his first speech after the Republican National Convention, President Trump said the Democratic vice-presidential nominee Kamala Harris is “not competent” enough to be the first female US president.
He suggested his daughter, Ivanka, would be a much better fit for the job.
Speaking at a campaign rally in New Hampshire, Mr Trump criticised Ms Harris’ 2020 election campaign.
He insisted that Ms Harris was not suited to make history as the first American female president.
Mr Trump said: “I want to see the first woman president also.
“But I don’t want to see the first woman president get into the position the way [Ms Harris] would do it.
“And she’s not competent, she’s not competent.”
He added: “They’re all saying, ‘We want Ivanka’. I don’t blame them.”
Ivanka Trump is married to Jared Kushner who is also one of Mr Trump’s senior advisors.
Before joining her father in the White House, Ivanka Trump served for a time as an executive vice president for the Trump Organisation.
But she left the family-owned business in 2017 to serve in her father’s presidential administration.