This year, the annual holiday tradition of deriding Melania Trump for her Christmas decorations coincided with the NATO summit in London, where she also has been excoriated for her fashion choices.

As if that’s not enough, the vicious impeachment game yesterday extended to her beloved 13-year-old son, Barron, when Stanford Law Professor Pamela Karlan used the child to belittle the president during House Judiciary Committee hearings: “While the president can name his son Barron, he can’t make him a baron.”

It was a despicable intrusion on a child’s privacy, and betrayed Karlan’s partisan obsessions. The first lady lashed out in a rare political tweet: “Pamela Karlan, you should be ashamed of your very angry and obviously biased public pandering, and using a child to do it.”

This is her lot. No matter how dignified she remains, the first lady simply can never satisfy sufferers of Trump Derangement Syndrome. She is guilty by marriage, as a new unauthorized biography, ‘‘Free, Melania,’’ makes clear, and nothing is off limits.

No matter that the White House looks beautiful in its patriotic holiday finery, or that the first lady has been lauded in Europe for her stunning outfits this week. The same media outlets that gushed praise over Michelle Obama and Hillary Clinton as being the epitome of style and glamour have changed their tune when it comes to former model Mrs. Trump.

The Washington Post is the worst offender because its attacks pose as genuine commentary. Fashion critic Robin Givhan this week, for instance, ridiculed Mrs. Trump for draping an elegant Max Mara winter coat around her shoulders while inspecting the White House decorations for her annual holiday video.

Anyone not deranged by Trump hatred would have seen an elegant first lady inviting the camera into what she calls the “people’s house,” adjusting the occasional bauble as she strolls around, while allowing the decorations to star. It’s hard to find anything to criticize in the video, but that didn’t stop Givhan’s poison pen.

The coat looked “ridiculous.” It was “a silly fashion folly … a discomforting affectation taken to a ludicrous extreme,” and the first lady “exudes cold, dismissive aloofness.” Apparently.

You can hardly blame Mrs. Trump if she is aloof, considering the unjustified bashing she has received since the minute her husband launched his 2016 campaign. With her toxic media image, is it any wonder that she was booed by schoolchildren in Baltimore?

Even when she was admitted to the hospital for a serious kidney condition last year, her temporary disappearance from public view spawned nasty rumors that she was recovering from “spousal abuse.”

Shy by nature, self-conscious about her accent and increasingly wary of media attention, her office nonetheless cooperated with CNN correspondent Kate Bennett, whose book ‘‘Free, Melania,’’ out this week, adds its own dollop of malice to the mix.

It depicts Mrs. Trump as a woman who doesn’t sleep with her husband, is jealous of stepdaughter Ivanka and couldn’t care less about her Be Best anti-bullying initiative.

It surmises that the president was involved in releasing old nude photos of his wife during the 2016 campaign, via his friend Roger Stone.

It also accuses Mrs. Trump of ‘‘resting bitch face,’’ which it claims is endemic to her homeland, Slovenia.

Her office was moved last week to issue a statement chastising Bennett: “Our office worked with Kate in good faith on her book, and thought she would do an honest job. Sadly, [the book] includes many false details and opinions.”

While her efforts as first lady don’t get much traction with the public, Mrs. Trump keeps putting one foot in front of the other.

She tries to make a difference with her campaigns against bullying and childhood vaping, acts as the consummate hostess at state dinners and performs impeccably on the international stage, where her multilingual charm softens her husband’s image.

In London this week, she met fifth-graders at a Salvation Army center where they were making holiday ornaments.

“My impression of her was actually really nice,” 10-year-old Isabelle was reported saying. “Everyone was expecting her to be very grumpy but she was actually very nice.”

Most people who meet the first lady say the same, that she is much warmer and friendlier than her Cruella de Vil image.

But, in some ways, that image is her own fault because of the siege mentality she has developed.

It’s understandable she would want to shy away from a spotlight that has been so unforgiving, and which also has attacked her only child.

But she is allowing herself to be defined by the Resistance media, which views her, along with any conservative woman, as an “enabler” of the orange devil in the Oval Office. She and Barron are soft targets to attack her husband, and there’s no sign of a reprieve.

The first lady needs to find a way to show America the real Melania. She will find the haters are a minority, and their caustic opinion will be overwhelmed by a wave of admiration from a country that wants excuses to like the Trump White House.

She has nothing to lose and everything to gain.

Lonely voice of prudence

Not one of the legal scholars called to make the case for or against impeachment in the Dems’ biased setup Wednesday was a Trump supporter.

But one was a voice of prudence and reason. One was a model of integrity and courage.

You can’t understate how difficult it must have been for George Washington University Professor Jonathan Turley to be the lone expert arguing against impeachment in that room.

But he was relaxed and coherent compared with the other three. Democratic witnesses Noah Feldman, Pamela Karlan and Michael Gerhardt were variously dogmatic, emotional, egotistical, hectoring and partisan.

Karlan even told us how hard she worked over Thanksgiving reading transcripts: “I ate a turkey that came to us in the mail that was already cooked because I was spending my time doing this.”

Only Turley grasped the gravity of what is being proposed and the flimsiness of the evidence.

“This isn’t improvisational jazz,” he said. “Close enough is not good enough … You have to make it stick because you’re trying to remove a duly elected president.”

Turley voted against Trump in 2016, frequently has criticized the president, thinks that his Ukrainian call was “anything but perfect” and that his reference to the Bidens was “highly inappropriate.”

But the legal case for impeachment is “woefully inadequate” and “dangerous.”

“I am concerned about lowering impeachment standards to fit a paucity of evidence and an abundance of anger.”

To continue with a “slipshod” case would be an abuse of congressional power, “doing precisely what you’re accusing the president of doing.”

“You’re going to leave half the country behind.”

Yep, as the Democrats’ best 2020 election hope, impeachment is a dud.

BoJo makes Trudeau look like a true friend

Justin Trudeau isn’t the only two-faced NATO leader caught on a hot mic laughing at President Trump at Buckingham Palace.

His snark is no surprise, but as summit host, Trumpian populist and putative friend, British Prime Minister Boris Johnson should have been more respectful.

Trump’s sin was to take time to answer journalists’ questions, making Emmanuel Macron late for cocktails.

Johnson asks Macron, “Is that why you were late?,” laughing and buckling his knees in feigned shock, which encourages Trudeau to take the mockery a step too far.

Johnson later dismissed this characterization of the overheard conversation as “complete nonsense.”

But what we saw on video shows he’s the real two-face.