Update (8:50 am ET): The tweets appear to have stopped...for now, at least. Meanwhile, Macron's office has refused to comment on Trump's claims.

OFFICE OF FRENCH PRESIDENT MACRON SAYS IT REFUSES TO MAKE ANY COMMENT REGARDING TRUMP'S TWEETS CRITICISING FRANCE AND MACRON

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Update III (8:35 am ET): Without directly referencing the rumors, Trump has branded reports that he refused to appear at a cemetery for American soldiers because he didn't want to get his hair wet as "fake news." In the tweet, Trump insisted that he wanted the Secret Service to drive him to the speech instead of taking a helicopter, but they refused because of security concerns. He added that he gave a speech at the cemetery the next day in the pouring rain - something that was "little reported".

By the way, when the helicopter couldn’t fly to the first cemetery in France because of almost zero visibility, I suggested driving. Secret Service said NO, too far from airport & big Paris shutdown. Speech next day at American Cemetary in pouring rain! Little reported-Fake News! — Donald J. Trump (@realDonaldTrump) November 13, 2018

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Update II (8:20 am ET): Trump's rampage against Macron continues. The president slammed his French counterpart for his low approval rating, as well as France's high unemployment. Furthermore, in response to Macron's "nationalist" snub, Trump pointed out that "there is no more nationalist country" than France...

The problem is that Emmanuel suffers from a very low Approval Rating in France, 26%, and an unemployment rate of almost 10%. He was just trying to get onto another subject. By the way, there is no country more Nationalist than France, very proud people-and rightfully so!........ — Donald J. Trump (@realDonaldTrump) November 13, 2018

...before adding a spin on his classic slogan.

......MAKE FRANCE GREAT AGAIN! — Donald J. Trump (@realDonaldTrump) November 13, 2018

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Update (8:10 am ET): Trump's rage against Macron continues, but this time, the topic is slightly more serious. What could be more serious than questioning the foundation of Post-WWII military alliances, you might ask? The answer is simple - trade!

Trump conceded that while France makes "very good wine" (an interesting claim from Trump, who doesn't drink), the country "makes it hard for the US to sell its wine into France, and charges very big tariffs". Meanwhile "The US makes it easy for French wines and charges small tariffs."

"Not Fair, must change!"

On Trade, France makes excellent wine, but so does the U.S. The problem is that France makes it very hard for the U.S. to sell its wines into France, and charges big Tariffs, whereas the U.S. makes it easy for French wines, and charges very small Tariffs. Not fair, must change! — Donald J. Trump (@realDonaldTrump) November 13, 2018

We now await Trump's order of an investigation into the national security implications of imported French wine.

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President Trump isn't ready to forgive the "French diss" served up over the weekend by President Emmanuel Macron.

During a ceremony honoring the 100th anniversary of World War I at the Arc de Triomphe on Sunday, French President Emmanuel Macron insulted Trump to his face by launching into a screed about the dangers of toxic "nationalism" and subtly accusing the US of abandoning its "moral values".

This did not sit well with the US president, who was already facing criticism over his decision to show up late to a ceremony honoring the war dead (the administration blamed it on security concerns though it's widely suspected that Trump didn't want to get his hair wet), and Trump has let his displeasure be known in a series of tweets ridiculing Macron's suggestion that Europe build its own army, saying that France and other European members of NATO would be better served by paying their fair share for NATO while daring them to leave and pay for their own protection.

And in his most abrasive tweet yet mocking the increasingly unpopular Macron's imperial ambitions (no, really), Trump pointed out that, historically speaking, Europe has been its own worst enemy, and that while Macron wants to defend the Continent from the US, China and Russia, "it was Germany in WWI & WWII," adding that "they were starting to learn German in Paris before the US came along. Pay for NATO or not!"

Emmanuel Macron suggests building its own army to protect Europe against the U.S., China and Russia. But it was Germany in World Wars One & Two - How did that work out for France? They were starting to learn German in Paris before the U.S. came along. Pay for NATO or not! — Donald J. Trump (@realDonaldTrump) November 13, 2018

Of course, Macron isn't the only French official calling for the creation of a "European army". The country's finance minister advocated for the creation of a Continental army during an interview with Germany's Handelsblatt - a comment that was derided by the paper's editors, who pointed out that Germans "weren't very supportive" of the idea. One wonders why...