How Donald Trump Celebrated First Birthday Since Leaving White House: Report

Former President Donald Trump celebrated his 75th birthday Monday in New Jersey with his eldest son, a report says.

Trump spent his first birthday since leaving the White House "in a similar fashion to last year," People reported. His son Donald Trump Jr. and his girlfriend Kimberly Guilfoyle, as well as football legend Herschel Walker and more, gathered at Trump's golf club in Bedminster for the occasion, according to the outlet.

Trump was expected to play golf Monday while "the family will celebrate Donald's birthday together as they usually do," an unnamed source told People.

It is not clear whether his wife Melania Trump, their son Barron and other Trump family members were present during the celebration.

Donald Jr. shared a video of them singing "Happy Birthday" to his dad on Instagram Tuesday. He panned the camera to show the guests, and the former first lady and their 15-year-old son were not captured in the video.

"It’s always nice when family and great friends as well as a few members of Congress sing you happy birthday [laughing emoji]. As much as 45 doesn’t love birthdays it was great to be there," he wrote in the caption.

Trump's second son Eric Trump and his wife Lara Trump also posted a birthday tribute for him on Instagram. "Happy birthday, Grandpa!!!!" she wrote alongside a photo of herself, Eric and their two young children with the former president on Instagram.

Trump had moved from Florida to Bedminster for the summer. Last month, he spent Mother's Day with Melania and Barron enjoying lunch at his private Palm Beach club, Mar-a-Lago, and left shortly after their get-together. Trump boarded the plane to New Jersey without his wife and youngest son.

An unnamed club source previously told People in May that this was an expected move. "He always comes to the Mother's Day lunch then leaves, now that the winter season is officially over," the insider said. "He is very routine [and] rarely deviates on anything in this area."

The source added, "Melania and her family will spend time with Donald but also continue working with Barron's school and keeping him up to date on his extracurricular activities."

Meanwhile, the former president's ex-wife, Ivana Trump, said she spoke to him on his birthday.

"Donald hates his birthdays," Ivana told People. "So I did speak to him and wished him happy birthday and told him, 'Don't worry about your age. Age is just a number, and his and mine [are] unlisted.'"

She also said she is happy that her ex-husband and their kids are free from Washington, D.C.

"I just want them to be able to live their normal lives - normal lives. Not the Washington life and all that, just in New York or wherever they're going to be and just live their normal lives," Ivana explained. "I think they enjoyed being around Donald and running the election and seeing what will happen, but now it is - thank god - over. I'm not really sure what they are going to be up to."

Ivana and her ex-husband share two sons, Donald Jr. and Eric, and daughter Ivanka Trump.