Melania Trump officially became part of the Trump household in 2005. She and Donald Trump tied the knot several years after dating.

While the couple has now been married for more than a decade, the status of her relationship with her husband's adult kids remains unclear. But, her self-proclaimed "former best friend" revealed that tension is always apparent between them.

Stephanie Winston Wolkoff wrote in her book, Melania and Me, several details about the two female Trumps' relationship. Some reports even noted that the material focuses on the tension-filled tie that Melania and Ivanka share with each other.

Wolkoff included in her book that Melania Trump coldly "dismissed" the idea of Ivanka Trump becoming the first female president of the United States, according to the Daily Express. Another source, who is connected to the material, also, revealed that the First Lady "scoffed" at the First Daughter's alleged goals.

She would "roll her eyes" whenever Ivanka opens up about her "grand plan." While Jared Kushner would always chime in with his support toward his wife, Donald Trump's wife would "mumble, no thank you."

Speaking to Channel 9 Australia, Stephanie Winston Wolkoff recently discussed a similar matter. In an effort to promote her Melania Trump-centered book, she claimed that Donald Trump is preparing Ivanka Trump for the presidency.

She, later on, described it as "insane," adding that the U.S. President has continued to instill this idea to the rest of the country. Despite her husband's preference toward his eldest daughter, the former East Wing aide noted that the First Lady is "not unhappy."

Ivanka Trump is not the only Trump child who aspires to become the next president of the United States. Reports said that Donald Trump Jr has, also, expressed his plans to follow his father's footsteps.

Sources related to Wolkoff's book revealed that the First Lady has always had to deal with two Trump kids. She would, reportedly, "shake her head" in a discrete manner as it "disgusts" her.

Town and Country magazine released an excerpt from Melania and Me following its release earlier this month. The main subject of the extract revolves around Ivanka Trump's effort to "cut ahead" and "fill the void" as  "acting First Lady."

Wolkoff wrote that this happened in the early days of Donald Trump's presidency when Melania Trump was still in New York. She, also, claimed that the First Daughter carried out press conferences and speeches when the actual First Lady was unavailable.