Anthony Scaramucci's wife filed for divorce while she was nine months pregnant and, when their son arrived on Monday, he congratulated her by text message, according to reports in the United States.
The new White House communications director, who in the space of a week has gone from being a little-known financier to a household name - thanks largely to his expletive-laced rant about his new colleagues - is yet to confirm the divorce.
He tweeted a request for prayers for his family.
The New York Post reported that Deidre Scaramucci, 38, filed divorce papers on July 6 in Nassau County Supreme Court, in New York.
Married for three years, she gave birth to their first son, Nicholas, in early 2014.
Their second son, James, arrived on Monday in New York City, while Mr Scaramucci was at a Boy Scout jamboree with President Donald Trump in West Virginia.
"When James was born, he sent her a text saying: 'Congratulations, I'll pray for our child,'" a source told the paper.
"She's mad. They aren't really speaking right now.
"The pain runs deep. Anthony tells her she's not that smart, that he's out of her league."
He reportedly did not meet his newborn son until Friday evening, at the end of a whirlwind first week in Washington in which he witnessed the ouster from the White House of his bitter rival, Reince Priebus, who served as chief of staff.
An associate of Mr Scaramucci, 53, defended him, saying that the child arrived early.
"There was discussion between him, her and the divorce attorneys about Anthony going to the hospital and unfortunately the delivery was sudden," the source told the paper.
Profile | Anthony Scaramucci
Mr Scaramucci's mother, Marie, who lives close to the marital home on Long Island, told the paper she was yet to meet her new grandson.
"No, I haven't," she said when reached by phone. "There's a reason for it and I don't want to discuss it."
Headlines about the increasingly acrimonious divorce is not what Mr Scaramucci, nicknamed The Mooch, would have wished for his first week in Washington.
"OK, the Mooch showed up a week ago," he said, calling a reporter on Wednesday night.
"This is going to get cleaned up very shortly, OK? Because I nailed these guys."
But the slick, brash New Yorker appeared unflustered by the separation from his wife.
The evening of his appointment as White House communications director - an announcement that forced the resignation of Sean Spicer - Mr Scaramucci was hosting a graduation party for his son with his first wife Lisa, Anthony Jr.
The party, held at the Hunt & Fish Club in Manhattan - a restaurant he co-owns - featured DJs and a performance by rapper French Montana.
"He was asking everyone around him how he did at his first press conference," said Eytan Sugerman, who jointly owns the restaurant with Mr Scaramucci.
He said Mr Scaramucci is already preparing to be lampooned on Saturday Night Live - this weekend Variety magazine reported that Ben Stiller or Mario Cantone from Sex And The City were leading contenders.
"He was thinking Meryl Streep or Julia Roberts could play him," added Mr Sugerman.
Mr Scaramucci is said to have spent the weekend visiting his family on Long Island.
He was married to Lisa for 23 years, whom he met at church while attending Tufts University. They have three children.
"When they were married, they had nothing, they were literally counting quarters in a jar to figure out what they were going to have for dinner that night," said a friend of Lisa's.
"They liked that. They knew they were going to climb together.
"Things went bad when Anthony became very successful in the late 90s."
Nelson Braff, another co-owner of Hunt & Fish, said they had been friends for 20 years and yet he never knew Lisa.
"Once he said, 'Did you ever meet my ex?' and I said, 'No never.'
"And he said, 'She really didn't want to participate in what had become my life.'"
Lisa told The Post: "Although divorced in 2014 we maintain a cordial relationship for the benefit of our children."
In 2011 he began dating Deirdre, who had started work at his Manhattan hedge fund, SkyBridge Capital, in 2007, as an assistant, rising to investor relations.
The couple married on July 11, 2014, after his divorce was finalised.
But as he edged closer to the White House, the distance between him and his wife grew.
A friend of Mr Scaramucci told the paper that he was pursuing "a different career objective that didn't align with Deidre's trajectory."
Another person close to Mr Scaramucci claimed that he was actually the victim of his wife's verbal abuse.
"She would mock him for being a Trump sycophant," the source said.
Jill Stone, Mrs Scaramucci's lawyer, told The Post that her client "is not making this into a circus."
She continued: "She has children to protect and that's what she's concerned about."
Arthur Schwartz, Mr Scaramucci's representative, said there was no one else involved.
"There's absolutely zero truth in that," he said.
An associate added: "The only one he's dating right now is the West Wing of the White House."