President Trump is representing the U.S. and U.S. interests overseas, and all signs point to another galactic showdown with some of the left-leaning leaders of Europe.

When Trump was elected president, he upset the "new world order" here at home as well as across the pond. Trump disrupted the coalition of leftists who were guiding world policy towards more liberal, progressive policies concerning trade, migration, the environment and more. He upset the apple cart and that pissed a lot of people off.

He's not done yet.

Prior to his arrival, Trump was already under fire from London Mayor Sadiq Khan, who referred to the U.S. President as a "global threat." A statement from the mayor's office identified the threat: "Donald Trump is the most egregious example of a growing far-right threat around the globe, which is putting at risk the basic values that have defined our liberal democracies for more than 70 years." You ain't kidding!

On Wednesday, Trump will participate in ceremonies marking the 75th anniversary of D-Day. Fox News says French President Emmanuel Macron is expected to use the occasion to call for "strengthening the multinational ties the U.S. president has frayed."

Trump supports Brexit, something Barack Obama, a partner in the "new world order," did not support. He has also been critical of outgoing Prime Minister Theresa May for her inability to foster an agreement for implementing Brexit. This puts him in step with most Brits at this time.

The fact that Khan felt it necessary to attack Trump prior to a state visit is further proof of the left's concern about Trump's influence.

Trump's European visit will raise the ire of the left but will embolden those who have resisted the expansion of progressive policies in Europe and across the world. How symbolic it is that Trump's visit coincides with the anniversary of the landing at Normandy that led to the liberation of Europe 75 years ago.

Barry Richard is the host of The Barry Richard Show on 1420 WBSM New Bedford. He can be heard weekdays from noon to 3 p.m. Contact him at barry@wbsm.com and follow him on Twitter @BarryJRichard58. The opinions expressed in this commentary are solely those of the author.