Donald Trump Jr. and his wife, Vanessa Trump, who are in the process of divorcing, in 2016. (Robyn Beck/AFP/Getty Images)

Okay, now it’s as close to official as these things get: Donald Trump Jr. is dating Fox News host Kimberly Guilfoyle. How do we know? Because his wife, Vanessa Trump — from whom the eldest son of President Trump is separated — says so.

Vanessa Trump took to her family’s favorite medium, Twitter, with a message Thursday that seemed protective of her estranged husband’s new lady, a co-host of “The Five” who was married to Gavin Newsom when he was San Francisco’s mayor.

Vanessa Trump posted a link to a Mediaite story that questioned a critic who suggested that Fox should fire Guilfoyle and called her relationship with the president’s son — which at the time had been reported only in tabloids — a conflict of interest. “The lengths people will go to attack a woman simply because she’s dating Don,” Vanessa Trump wrote. (Note her last three words — now that’s a corroboration if we’ve ever heard one.)

And Vanessa Trump seemed very much okay with her family’s arrangement: “We’ve been separated for over 9 months and respect each other’s decisions & privacy. We’ll focus on raising our great kids.Would be nice if the press did the same rather than obsess over our pvt lives!”

Vanessa Trump’s defense of her husband’s new girlfriend got a thumbs-up from Don Jr., who retweeted the message. More evidence that the former couple’s “conscious uncoupling” is going smoothly? The first first son also posted a pic to social media of the two of them sharing a meal with two of their five kids. “Great graduation lunch with Kai, Vanessa and Tristan,” he wrote. “Kai is graduating from lower school and going into middle school and T-man graduated Kindergarten and is ready for first grade. I couldn’t be more proud of them both.”