Some among America's military allies believe Trump deliberately attempted a coup and may have had help from federal law-enforcement officials

The supporters of President Donald Trump who stormed the Capitol on Wednesday to stop the ratification of President-elect Joe Biden's election victory were attempting a violent coup that multiple European security officials said appeared to have at least tacit support from aspects of the US federal agencies responsible for securing the Capitol complex.

Insider spoke with three officials on Thursday morning: a French police official responsible for public security in a key section of central Paris, and two intelligence officials from NATO countries who directly work in counterterrorism and counterintelligence operations involving the US, terrorism, and Russia.

They said the circumstantial evidence available pointed to what would be openly called a coup attempt in any other nation.

America's international military and security allies are now willing to give serious credence to the idea that Trump deliberately tried to violently overturn an election and that some federal law-enforcement agents — by omission or otherwise — facilitated the attempt.

'Today I am briefing my government that we believe with a reasonable level of certainty that Donald Trump attempted a coup'

One NATO source set the stage, using terms more commonly used to describe unrest in developing countries.

"The defeated president gives a speech to a group of supporters where he tells them he was robbed of the election, denounces his own administration's members and party as traitors, and tells his supporters to storm the building where the voting is being held," the NATO intelligence official said.

"The supporters, many dressed in military attire and waving revolutionary-style flags, then storm the building where the federal law-enforcement agencies controlled by the current president do not establish a security cordon, and the protesters quickly overwhelm the last line of police.

"The president then makes a public statement to the supporters attacking the Capitol that he loves them but doesn't really tell them to stop," the official said. "Today I am briefing my government that we believe with a reasonable level of certainty that Donald Trump attempted a coup that failed when the system did not buckle.

"I can't believe this happened."

The French police official said they believed that an investigation would find that someone interfered with the deployment of additional federal law-enforcement officials on the perimeter of the Capitol complex; the official has direct knowledge of the proper procedures for security of the facility.

The security of Congress is entrusted to the US Capitol Police, a federal agency that answers to Congress.

"You cannot tell me I don't know what they should have done. I can fly to Washington tomorrow and do that job, just as any police official in Washington can fly to Paris and do mine," the official said. The official directs public security in a central Paris police district filled with government buildings and tourist sites.

"These are not subtle principles" for managing demonstrations, "and they transfer to every situation," the official said. "This is why we train alongside the US federal law enforcement to handle these very matters, and it's obvious that large parts of any successful plan were just ignored."

The French police official detailed multiple lapses they believe were systematic:

1. Large crowds of protesters needed to be managed far earlier by the police, who instead controlled a scene at the first demonstration Trump addressed, then ignored the crowd as it streamed toward the Capitol.
2. "It should have been surrounded, managed, and directed immediately, and that pressure never released."
3. Because the crowd was not managed and directed, the official said, the protesters were able to congregate unimpeded around the Capitol, where the next major failure took place.
4. "It is unthinkable there was not a strong police cordon on the outskirts of the complex. Fences and barricades are useless without strong police enforcement. This is when you start making arrests, targeting key people that appear violent, anyone who attacks an officer, anyone who breaches the barricade. You have to show that crossing the line will fail and end in arrest."
5. "I cannot believe the failure to establish a proper cordon was a mistake. These are very skilled police officials, but they are federal, and that means they ultimately report to the president. This needs to be investigated."
6. "When the crowd reached the steps of the building, the situation was over. The police are there to protect the building from terrorist attacks and crime, not a battalion of infantry. That had to be managed from hundreds of meters away unless the police were willing to completely open fire, and I can respect why they were not."

The third official, who works in counterintelligence for a NATO member, agreed that the situation could only be seen as a coup attempt, no matter how poorly considered and likely to fail, and said its implications might be too huge to immediately fathom.