It’s been decades since we heard much from Ivana Trump, Donald Trump’s first wife and the mother of his oldest three children Donald Jr., Ivanka and Eric.

But Ivana’s got a new memoir out, “Raising Trump,” and she’s been generating what third wife Melania Trump huffily referred to as “attention-seeking and self-serving noise” as she promotes the book by talking up her importance in the Trump saga and her influence over, say, the president’s Twitter habits.

But, of course, Ivana is being attention-seeking and self-serving. After all, she’s a Trump by marriage and brash, self-promotional tactics are how America’s first family rolls.

On Monday, Ivana made headlines by stirring up a conflict with Melana via a series of dueling media statements. Ivana said Melania must be miserable in the White House and worried Melania might be jealous of her.

This skirmish couldn’t help but resurrect memories of the glory days of 1980s night-time soaps when Linda Evans and Joan Collins clawed at each other’s shoulder pads in “Dynasty.”

But as much as Melania wasn’t happy with Ivana’s apparent attempts to rob attention from her endeavors as first lady, she might take some solace in the way that her husband’s ex-wife has been dishing on her own kids, notably Donald Trump Jr.

In her promotional interviews for her memoir, Ivana has offered the world a window into why Donald Jr. might be the way he is.

One one hand, he’s a faithful, pugilistic Twitter defender of the family name. On the other hand, he can’t seem to stop himself from getting into embarrassing public pickles, as in becoming a target of multiple investigations into the Trump campaign’s contact with Russian officials.

Actually, what Ivana reveals about Donald Jr.’s relationship with his father might leave some people feeling a little bit sorry for the 39-year-old man that his father still refers to as a “kid.”

The portrait that Ivana paints of her ex-husband’s paternal abilities doesn’t come off “as intentionally malicious,” Vanity Fair said.

But Ivana definitely depicts a gruff business dad-type who never seemed comfortable around his children when they were little or growing up.

“He was a loving father, don’t get me wrong, and he was a good provider, but he was not the father which would take a stroll and go to the Central Park or go play to baseball with them or something,” Ivana told Good Morning America’s Amy Roach. “It was only until they were about 18 years old [that] he could communicate with them, because he could start to talk business with them.”

For example, Ivana revealed the time when Donald Jr. was a young boy and his father summoned her to bring him to his office in Trump Tower immediately, Vanity Fair recounted. After spending 20 minutes with his eldest son, Trump told Ivana, “You are a bad mother. I’m keeping Donald Jr.”

Ivana was furious to have her mothering questioned, but she kept her cool and tossed out: “Keep him. I have two more to raise.”

Ten minutes later, Donald Jr. was returned to the family penthouse in Trump Tower.

“I knew Donald would not know what to do with him,” Ivana said.“It was hurtful, but I could not be intimidated.”

Ivana also revealed that the future president protested to naming his firstborn son after himself, according to Vanity Fair.

“I said, ‘Why not?’” she remembered. “He said, ‘How about if he’s a loser?’”

Ivana again won this battle, but others can decide whether the president’s fears about his oldest son have been borne out.

Whatever his mother dishes about him, Donald Jr. at least has been having fun this past weekend, jumping up and down on some moral high ground of his own design over film mogul Harvey Weinstein being exposed as an alleged serial sex predator.

To Donald Jr., the fact that Weinstein had so many left-leaning Hollywood friends exposes rampant liberal hypocrisy in the coastal media elite. He’s been generously sharing his views on Weinstein and liberal hyprocrisy on Twitter.

And, yet, as late-night host Jimmy Kimmel and others have pointed out, Donald Jr.’s own family isn’t free from the stain of alleged serial sexual predation.

On his show Monday night, Kimmel effectively deflated Donald Jr.’s moral puffery by pointing out that we “celebrated” the one-year anniversary of his father being caught on the 2005 Access Hollywood recording, boasting about sexually assaulting women.

great – in the meantime, enjoy this! https://t.co/kQsBAioFwh — Jimmy Kimmel (@jimmykimmel) October 7, 2017

“So anyway, note to DJTJ,” Kimmel concluded. “Next time you’re defending your father and you think it’s a good idea to draw a parallel between him and a freshly-accused sexual predator? Don’t. It doesn’t help. It really doesn’t.”